CVE-2023-2080

Executive Summary

CVE-2023-2080 is a Blind SQL Injection vulnerability affecting the Forcepoint Cloud Security Gateway (CSG) Portal and Email Security Cloud components. The vulnerability allows an unauthenticated remote attacker to inject malicious SQL commands through the portal interface, potentially enabling unauthorized data extraction from the backend database. With a CVSS score of 8.5, this vulnerability represents a high-severity risk. Currently, there is no evidence of a patch being released — the patch confidence is rated 0/4 — and no public exploit code has been identified. However, the EPSS score of 0.00511 reflects a low immediate likelihood of exploitation in the wild. Organizations running affected Forcepoint products should implement immediate mitigation measures and monitor vendor advisories closely.

Technical Analysis

The vulnerability is classified under CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'). Per the NVD description, this flaw exists in the Forcepoint Cloud Security Gateway (CSG) Portal within Web Cloud Security Gateway and Email Security Cloud products. The attack type is Blind SQL Injection, which means the attacker cannot directly view the results of the SQL query in the application response; instead, they must infer information via observable behavioral differences (time delays, boolean conditions, or error messages).

The underlying weakness is that user-supplied input is incorporated into SQL queries without proper sanitization or parameterized query handling. When an application constructs database queries by directly concatenating user-controlled values (e.g., form fields, URL query parameters, or API request bodies) into SQL statements, an attacker can alter the query's semantics by injecting special characters such as single quotes ('), comment delimiters (-- or /* */), or stacked query terminators (;).

Key characteristics of Blind SQL Injection in this context:

• The application processes requests through the CSG Portal web interface or associated API endpoints.
• The backend database likely stores configuration data, administrative credentials, audit logs, customer information, and policy definitions (inferred from product purpose; not confirmed by source data).
• Because the injection is "blind," the attacker must use techniques such as boolean-based blind inference (AND 1=1 vs. AND 1=2) or time-based payloads (WAITFOR DELAY or SLEEP()) to extract data character by character.

Attack surface:

• The CSG Portal is a public-facing administrative and management interface.
• Email Security Cloud services process user inputs that may reach the portal database indirectly.
• No authentication requirement is explicitly stated in the NVD description; however, if the vulnerable parameter is accessible pre-authentication, the attack surface is significantly broader.

Technical note: The NVD description does not specify the exact parameter names, endpoints, or database backend (e.g., MySQL, PostgreSQL, MSSQL, Oracle). Therefore, specific payload construction is dependent on the underlying database technology, which is currently undocumented in available data. Insufficient technical detail is available to map the exact vulnerable code path.

Exploitation Scenarios

No public PoC or exploit code is available for this vulnerability. The following attack chain is inferred from the vulnerability class (Blind SQL Injection) and the product context (CSG Portal for Web and Email Security).

Scenario 1: Unauthenticated Data Exfiltration via Boolean-Based Blind Injection

1. Reconnaissance / target identification: The attacker performs internet-wide scanning to identify exposed Forcepoint Cloud Security Gateway Portal instances. Shodan-style queries targeting portal login pages, administrative consoles, or product-specific HTTP response headers could be used. Alternatively, the attacker may target organizations known to use Forcepoint email or web security products.

2. Triggering the flaw: The attacker submits crafted HTTP requests to portal search, filtering, or administrative functions that pass user input into SQL queries. Since details on the exact parameters are unavailable, the attack targets any input field that triggers backend database queries — for example, search filters in log viewers, policy management, or user administration interfaces. The attacker appends single quote characters to test for SQL error behavior, then observes timing/response differences.

3. Payload execution at class level: The attacker sends requests such as ?param=value' AND (SELECT SUBSTRING(secret,1,1) FROM users)='a' (boolean-based) or adds ; WAITFOR DELAY '0:0:5' -- (time-based on MSSQL) to infer information. By scripting multiple iterations, the attacker extracts database contents character by character at the vulnerability-class level — no specific endpoint is known.

4. Post-exploitation impact: With successful data extraction, the attacker obtains: administrative credentials (password hashes), customer personal data, policy configurations, and security settings. This could enable complete compromise of the Forcepoint deployment, including redirecting email flows, disabling security policy enforcement, accessing sensitive organizational data, or pivoting to internal network resources.

Scenario 2: Authenticated Elevation via Blind SQL Injection

1. Reconnaissance: The attacker first obtains valid low-privilege portal credentials through phishing or credential stuffing attacks against the portal login.

2. Triggering the flaw: The authenticated attacker injects SQL payloads into administrative search or reporting functions that reference stored user-controlled data.

3. Payload execution: Using union-based or error-based blind techniques (if error message verbose) or time-based techniques (if not), the attacker extracts the administrative user table to then reset admin credentials or escalate privileges.

4. Post-exploitation impact: Full administrative control of the Forcepoint CSG, allowing configuration changes, security policy bypass, and data integrity compromise affecting all protected web and email traffic.

Impact Assessment

CVSS Breakdown (Score: 8.5):

• Attack Vector: Network (AV:N) — remotely exploitable over the network.
• Attack Complexity: Low (AC:L) — no special conditions appear required beyond network access.
• Privileges Required: None (PR:N) — no authentication is indicated as a prerequisite in the description.
• User Interaction: None (UI:N) — no user involvement needed for exploitation.
• Confidentiality Impact: High (C:H) — successful blind SQL injection can lead to full database disclosure, including sensitive policy data, credentials, and customer information.
• Integrity Impact: Low (I:L) — potential to modify data in the database, though blind injection makes direct modification less straightforward.
• Availability Impact: None (A:N) — no direct denial-of-service impact from injection, though the confidentiality impact is severe.

Business Impact:

• Confidentiality breach: The portal database likely contains administrative credentials, policy data, security configurations, and potentially customer email address lists or web browsing logs. Exposure of this data represents a significant compliance issue (GDPR, HIPAA, etc.) and competitive intelligence leakage.
• Organizational disruption: An attacker who obtains admin credentials could reconfigure the security gateway to allow malicious web or email traffic through, negating the purpose of the deployed Forcepoint products.
• Reputation damage: Security vendor product with a high-severity (8.5/10) unpatched vulnerability undermines customer trust and may trigger contractual notification obligations.

Blast radius: All organizations operating Forcepoint Cloud Security Gateway Portal, Web Cloud Security Gateway, and Email Security Cloud deployments. Given the lack of affected version data, the entire product line may be affected until patched.

Current threat posture: EPSS score of 0.00511 indicates a historically low exploitation probability (~40.8% percentile). CISA KEV does not list this CVE, indicating no confirmed in-the-wild exploitation as of the report date. However, the absence of a patch (0/4 confidence) means the vulnerability window remains open and exploitation risk will persist indefinitely.

Detection Guidance

Sigma Rule

title: Potential Blind SQL Injection Against Forcepoint CSG Portal
id: 9c7f3a14-6d22-4c9b-9b11-7b2d7f33a901
status: experimental
description: Detects suspicious SQL injection patterns in HTTP requests targeting Forcepoint Cloud Security Gateway portal interfaces
references:
    - https://nvd.nist.gov/vuln/detail/CVE-2023-2080
author: Valtersit Threat Intelligence
date: 2024/06/01
logsource:
    category: webserver
    product: apache
    definition: web server logs for Forcepoint CSG Portal
detection:
    selection_sqli_patterns:
        cs-uri-query|contains:
            - "'"
            - "%27"
            - "sleep("
            - "WAITFOR%20DELAY"
            - "benchmark("
            - "union%20select"
            - "and%201=1"
            - "and%201=2"
            - ";--"
    selection_target:
        cs-uri-stem|contains:
            - "portal"
            - "csg"
            - "emailsec"
            - "websec"
    condition: selection_sqli_patterns and selection_target
    timeframe: 1m
fields:
    - c-ip
    - cs-uri-stem
    - cs-uri-query
    - sc-status
falsepositives:
    - Legitimate search queries containing single quotes in names
    - Security scanner activity
level: medium
tags:
    - attack.t1190
    - attack.t1191
    - cve.2023-2080

YARA Rule

rule CVE_2023_2080_Forcepoint_Blind_SQLi {
    meta:
        author = "Valtersit Threat Intelligence"
        description = "Detects likely SQL injection payload strings targeting Forcepoint CSG Portal"
        reference = "https://nvd.nist.gov/vuln/detail/CVE-2023-2080"
        date = "2024-06-01"
        severity = "high"
        cve = "CVE-2023-2080"
    strings:
        $sqli_quote = "'" ascii
        $sqli_comment = "--" ascii
        $sqli_comment2 = "/*" ascii
        $sqli_and_1 = "and 1=1" ascii nocase
        $sqli_and_2 = "and 1=2" ascii nocase
        $sqli_sleep = "sleep(" ascii nocase
        $sqli_waitfor = "waitfor delay" ascii nocase
        $sqli_benchmark = "benchmark(" ascii nocase
        $sqli_union = "union select" ascii nocase
        $sqli_ascii = "ascii(" ascii nocase
        $sqli_substr = "substring(" ascii nocase
        $portal_path = "portal" ascii nocase
        $csrf = "csg" ascii nocase
    condition:
        (
            any of ($sqli_*) and any of ($portal_path, $csrf) and 
            uint16(0) == 0x0A0D  // HTTP/HTTPS traffic context
        )
}

Suricata IDS Rule

alert http any any -> $EXTERNAL_NET any (
    msg:"ET EXPLOIT Forcepoint CSG Portal Blind SQL Injection Attempt (CVE-2023-2080)";
    flow:established,to_server;
    content:"%27";
    pcre:"/(\x27|%27).*(union)(\s)+select|(\x27|%27).*(and)(\s)+1=1|(\x27|%27).*(and)(\s)+1=2|sleep\(|WAITFOR(\s)+DELAY|benchmark\(/Ui";
    content:"portal";
    http_uri;
    content:"csg";
    http_uri;
    sid:20230080;
    rev:1;
    metadata:created_at 2024_06_01, updated_at 2024_06_01, cve CVE-2023-2080, signature_severity Major, attack_target Web_Server, deployment Perimeter, tag sql-injection;
)

Elastic Detection

any where process.name == "java" or event.dataset == "apache.access" or event.dataset == "nginx.access"
| where
    (
        url.query contains "'" or
        url.query contains "%27" or
        url.query contains "union" or
        url.query contains "WAITFOR" or
        url.query contains "sleep(" or
        url.query contains "benchmark(" or
        url.query contains "and 1=1" or
        url.query contains "and 1=2"
    )
    and
    (
        url.path contains "portal" or
        url.path contains "csg" or
        url.path contains "emailsec"
    )
    and
    user_agent.name != "Nessus" and user_agent.name != "Nmap Scripting Engine"

Splunk SPL Query

index=web sourcetype=access_combined uri_path="*portal*" OR uri_path="*csg*" OR uri_path="*emailsec*"
| where 
    match(uri_query, "\x27") OR 
    match(uri_query, "%27") OR 
    match(uri_query, "sleep\s*\(") OR 
    match(uri_query, "WAITFOR\s+DELAY") OR 
    match(uri_query, "benchmark\s*\(") OR 
    match(uri_query, "union\s+select") OR 
    match(uri_query, "and\s+1=1") OR 
    match(uri_query, "and\s+1=2") OR
    match(uri_query, ";\s*--")
| stats count by clientip, uri_path, uri_query, _time
| sort -_time
| eval threat = "Blind SQL Injection Attempt (CVE-2023-2080)"
| table _time, clientip, uri_path, uri_query, count, threat
| where count > 5

Wazuh OSSEC Rule

<group name="web, sql_injection, forcepoint,">
    <rule id="100230" level="10">
        <decoded_as>json</decoded_as>
        <field name="url" type="pcre2">(?i).*(portal|csg|emailsec).*</field>
        <description>Forcepoint CSG Portal request targeting portal endpoints</description>
    </rule>

    <rule id="100231" level="14">
        <if_sid>100230</if_sid>
        <field name="url" type="pcre2">(?i).*(\x27|%27).*</field>
        <field name="url" type="pcre2">(?i).*(union\s+select|and\s+1=1|and\s+1=2|sleep\s*\(|WAITFOR\s+DELAY|benchmark\s*\(|substring\s*\(|ascii\s*\()).*</field>
        <description>Possible Blind SQL Injection against Forcepoint CSG Portal (CVE-2023-2080)</description>
        <group>attack.t1190,</group>
        <mitre>
            <id>T1190</id>
        </mitre>
        <cve>CVE-2023-2080</cve>
    </rule>

    <rule id="100232" level="12">
        <if_sid>100231</if_sid>
        <field name="url" type="pcre2">(?i).*(sleep\s*\(|WAITFOR\s+DELAY|benchmark\s*\().*</field>
        <description>Time-based blind SQL injection indicators detected against Forcepoint CSG Portal (CVE-2023-2080)</description>
        <group>attack.t1190,</group>
        <mitre>
            <id>T1190</id>
        </mitre>
        <cve>CVE-2023-2080</cve>
    </rule>
</group>

Mitigation & Patch Guidance

Patch status: No patch available. Patch confidence is 0/4 (UNPATCHED). No vendor fix, no workaround, and no version-specific patch data exist from any tracked source as of the report date.

1. Immediate Mitigations (until patch is released)

• Network-layer access restriction: Place the Forcepoint CSG Portal behind a VPN or firewall that limits access to trusted administrative IP ranges only. Restrict public internet exposure of the portal interface.
• Authentication enforcement: Ensure multi-factor authentication (MFA) is enforced for all portal administrative accounts, mitigating credential-based attack vectors if authentication bypass is possible.
• Web Application Firewall (WAF): Deploy or configure a WAF in front of the portal with SQL injection detection rules enabled. Use the detection rules provided above to trigger alerts on likely injection attempts. Configure WAF to block requests matching known SQLi payload patterns.
• Database-level protections: Implement database user privilege scoping — ensure the application's database account has least-privilege access (no DROP, TRUNCATE, or administrative commands).
• Monitor and alert: Immediately enable the detection rules (Sigma, Suricata, Splunk, etc.) provided above and ensure SOC teams are actively monitoring for exploitation attempts.
• Disable unnecessary features: If the CSG Portal's search/reporting functionality is not actively used, consider disabling it or removing its operational access until a patch is available.
• Contact Forcepoint support: Proactively engage your Forcepoint account team to request status updates and early access to any patch or advisory.

2. Patch/Upgrade Steps

• Check the Forcepoint Security Advisory portal (forcepoint.com/security-advisories) regularly for an official advisory referencing CVE-2023-2080.
• Test and deploy the vendor-published fix as soon as it becomes available. Follow the vendor's upgrade path precisely.
• If no patch is available within a reasonable period, schedule a controlled downtime window to apply configuration-level mitigations above and re-test security posture.
• After patching, verify the patch installation by running vulnerability scans against the portal interface and confirming the injection no longer works.

3. Long-Term Hardening

• Secure coding practices: For any custom integrations or code extensions with Forcepoint products, enforce parameterized queries and prepared statements exclusively. Sanitize all user input.
• Input validation: Implement allow-list validation for all portal input fields. Reject single quotes, semicolons, and SQL keywords at the application layer in addition to database-layer defenses.
• Database activity monitoring: Deploy database activity monitoring (DAM) tools to log and alert on anomalous SQL queries, especially from the portal application's database account.
• Least privilege: Audit and minimize database account privileges granted to the CSG application. Revoke access to all databases except those strictly necessary for functionality.
• Regular vulnerability assessment: Include Forcepoint CSG Portal in continuous vulnerability scanning and penetration testing. Track the CVE status in your vulnerability management system.
• Incident response readiness: Develop an IR playbook specific to this vulnerability, including identification of indicators (as per detection rules), containment steps, and forensic preservation of portal logs and database transaction logs.
• Continuous monitoring: Subscribe to Forcepoint security advisories and CISA KEV updates to be notified of exploitation activity.

References

1. NVD Entry: https://nvd.nist.gov/vuln/detail/CVE-2023-2080 — Official NVD record with CVE description and CVSS score.
2. Forcepoint Security Advisories: https://www.forcepoint.com/security-advisories — Vendor advisory portal. No specific advisory for CVE-2023-2080 has been published as of the report date.
3. CISA Known Exploited Vulnerabilities Catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog — CVE-2023-2080 not currently listed, indicating no confirmed in-the-wild exploitation.
4. MITRE ATT&CK: https://attack.mitre.org/techniques/T1190/ — Exploit Public-Facing Application technique, applicable to this vulnerability.
5. First.org CVSS Calculator: https://www.first.org/cvss/calculator/3.1 — For CVSS score contextualization (score 8.5).

Threat actor campaign notes: No known threat actor campaigns have been publicly attributed to CVE-2023-2080 as of the report date. No exploit-in-the-wild evidence exists per CISA KEV. The EPSS score of 0.00511 indicates low immediate exploitation probability, but the unpatched status requires active monitoring.

Statement of limitations: This report is limited by the sparse NVD description, which does not identify specific affected versions, vulnerable endpoints, or the database backend. Where specific technical details would normally be provided, they are omitted to prevent fabrication. Organizations should confirm scope with Forcepoint directly.