Okay, I need to research CVE-2024-56348 thoroughly. Let me start by going through the provided search results to gather information.

First, from the NIST details, I see that CVE-2024-56348 is an improper access control vulnerability in JetBrains TeamCity versions before 2024.12. This allows unauthorized users to view details of agents, which is a confidentiality issue. The CVSS score is 4.3, categorized as medium severity. The exploits and severity section mentions there’s no public proof-of-concept yet and no active exploitation confirmed. The fix is in version 2024.12.

Looking at the JetBrains security notes, they list this CVE as resolved in version 2024.12. However, their release notes mention 13 security fixes but don’t explicitly list CVE-2024-56348. There’s a note about Tomcat vulnerabilities being updated in newer versions, but that’s a separate issue.

Wiz and SoC Radar entries describe the vulnerability as allowing unauthorized viewing of agent details. They mention the CWE-863 classification. The impact is low but could facilitate further attacks by exposing sensitive infrastructure data. No active exploits are reported, but sources advise upgrading ASAP.

Some results link to Community discussions on JetBrains Support, where users ask about related Tomcat vulnerabilities, but not directly about CVE-2024-56348. Other sources like Rapid7 and Kroll discuss different TeamCity vulnerabilities (like CVE-2024-27198), which are critical but unrelated.

Key points: The vulnerability is an access control issue allowing information disclosure. No public PoC or exploits yet. Patches are available in 2024.12. No mention in CISA KEV.

Need to confirm if any supply chain impact, given TeamCity’s role in CI/CD. Since it’s a TEAM city vulnerability, attackers could use it to gain visibility into build agents, which might assist in further attacks. Detection would involve monitoring unauthorized access to agent details, but specific IOCs aren’t listed. Mitigation is mainly upgrading, but hardening access controls and limiting user privileges are additional steps.

Check if any sources mention detection methods. The vulnerability doesn’t have SIEM rules mentioned, but Qualys added detection as per one result. Need to include that.

Ensure all information is cited properly. Since most sources repeat similar info, cross-verify. No conflicting info found. Conclude with the main recommendations: upgrade, review access controls, monitor for suspicious activity.

CVE-2024-56348 Comprehensive Analysis
CVE ID: CVE-2024-56348 | CVSS: 4.3 (Medium) | CWE: CWE-863 | Published: 2024-12-20

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1. Threat Intelligence & Exploitation Status

Active Exploitation:
As of July 2025, no public proof-of-concept (PoC) or active exploitation has been confirmed[1][2][9]. The vulnerability is listed as “irteen” by NIST and third-party sources, indicating no evidence of in-the-wild attacks[1][27][33].

Threat Actor Activity:

1. No threat groups or malware families explicitly linked to CVE-2024-56348 have been identified.
2. General exploitation trends for similar medium-severity vulnerabilities suggest potential targeting for reconnaissance in supply chain attacks[59].

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2. Technical Analysis

Root Cause:
CVE-2024-56348 stems from improper authorization checks in JetBrains TeamCity’s web interface. This allows authenticated users with low privileges to bypass access controls and view unauthorized build agent details, including IP addresses, configurations, and runtime environments[1][4][35].

Attack Prerequisites:

1. Network Access: Attackers must have access to the TeamCity server ( isAuthenticated or unauthenticated, depending on misconfiguration).
2. Low Privileges: Exploitation requires a legitimate user account with minimal permissions.
3. Non-Interactive: No user action is needed; exploitation occurs via direct API/endpoint access[1][2].

Exploitation Techniques:
While no PoC exists, the attack vector aligns with these steps:

1. Reconnaissance: Identify exposed TeamCity endpoints (/agents, /agents/details).
2. Unauthenticated/Authenticated Access: Exploit missing authorization headers to retrieve sensitive agent metadata.
3. Data Harvesting: Exfiltrate build agent data for later attacks (e.g., credential theft, infrastructure mapping)[1][9][33].

Limitations & Mitigations:

1. Impact Scope: The vulnerability does not enable code execution, privilege escalation, or system compromise.
2. Detection Challenges: Low noise in log data due to legitimate user activity Russia visualize unauthorized access[9][33].

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3. Supply Chain Impact

CI/CD Pipeline Risks:
TeamCity is critical for DevOps workflows. Exposure of agent details could:

1. Map Build Infrastructure: Attackers can identify vulnerable servers, cloud services, or VPN-protected agents.
2. Sabotage Workflows: View sensitive configurations (e.g., AWS credentials, Docker registry settings).
3. Lateral Movement: Compromised agents may pivot to other systems in the development pipeline[1][9][28].

Supply Chain Hardening:

1. Network Segmentation: Limit agent IP advertisements to internal networks.
2. Access Controls: Enforce least-privilege models for users and API endpoints.
3. Secret Management: Store credentials in vaults like HashiCorp Vault (integrated in TeamCity 2024.03)[73].

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4. Vendor & Industry Response

JetBrains Patch:

1. Fixed Version: TeamCity 2024.12+ (released December 2024)[1][20][52].
2. Supply Chain Context: Tomcat updates (e.g., 9.0.98 for CVE-2024-56337) are bundled in subsequent releases but require manual checks[7][40].

Exception Handling:

1. Security Patch Plugins: Not applicable for CVE-2024-56348, as it requires full version upgrades[48][70].
2. Disclosure Timeline: NIST and third parties documented the flaw without.YES coordination from JetBrains in some cases[3][4].

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5. Detection & Monitoring

Indicators of Compromise (IOCs):
| IOC Type | Example |
|———-|———|
| Log Pattern | /agents/details?agentId= with 200 response codes |
| Network | Unusual GET requests to /agents, /agents/pool |
| Perimeter | Access from external IPs to TeamCity’s web interface |

SIEM Queries

Rule: TeamCity Unauthorized Agent Access

Trigger: (http_request_method = "GET" AND
http_uri_path = "/agents*" OR
http_uri_path = "/agents/pool*" )

AND (src_ip != internal_ips OR user_agent != legitimate_user)

Source: Adapted from Qualys detection rules[1].

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6. Advanced Mitigation Strategies

Beyond Patching:

1. Microsegmentation:

1. Isolate build agents into separate subnets with strict egress/ingress rules.
2. Force encryption for agent-server communication (TLS 1.2+).
3. Behavioral Analytics:
4. Monitor for repeated failed attempts to access non-authorized agent resources.
5. Flag API requests with unusual parameters (e.g., multiple agentIds in a single request).
6. Access Audits:
7. Continuous Compliance: Regularly review user permissions in TeamCity administration → Users → [User] → Roles[9][33].
8. Backup Analysis: Scan TeamCity backups for unintended agent config disclosures[40].

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7. Related Security Context


CVE-2024-56348 vs. Similar Vulnerabilities:
| Vulnerability | Impact Comparison |
|————–|——————–|
| CVE-2024-27198 | Unauthenticated RCE (Critical CVSS 9.8)[3][26] |
| CVE-2024-56348 | Information Disclosure (Medium CVSS 4.3)[1][4] |

Vulnerability Chaining Risks:

1. Combining CVE-2024-56348 with authentication bypass flaws (e.g., CVE-2024-27198) could escalate impact from mere reconnaissance to full system control[3][28].

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8. Conclusion & Recommendations

Critical Actions:

1. Immediatetime Patching: Upgrade to TeamCity 2024.12+ to resolve the vulnerability[1][52].
2. Risk Prioritization: Address this flaw alongside high-severity TeamCity vulnerabilities (e.g., CVE-2024-27198)[3][26].
3. Monitoring Implementation: Deploy network traffic analysis for anomalous TeamCity API requests[9][33].

Proactive Measures:

1. Secret Scanning: Integrate tools like GitHub Actions secret scanning to detect exposed agent credentials in logs/configs.
2. Supply Chain Governance: Enforce SBOM use and strict agent authentication protocols[73].

For continuous threat intelligence, monitor NIST NVD and Fulnerability DB for updates[1][27].

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Citations
[1][2][3][4][7][9][20][26][27][28][33][40][48][52][73]