Red Hat Automatic Bug Reporting Tool (ABRT) Privilege Escalation Vulnerability

Technical Analysis

CVE-2015-5287 arises from ABRT's insecure handling of temporary or crash-report files with predictable names, enabling a local attacker to pre-create a symlink pointing to a sensitive target file. When ABRT (running with elevated privileges) writes to the predictable filename, it follows the attacker-controlled symlink, resulting in privilege escalation or unauthorized file modification. Exploitation requires local access and specific permissions on the target host, making it most relevant to multi-user Linux systems rather than remote attackers. The affected product is noted as potentially end-of-life/end-of-service, meaning no vendor patch may be available and organizations should plan migration. For organizations running AI agent frameworks or LLM tool-execution environments on Red Hat-based Linux hosts with ABRT installed, successful exploitation could grant an attacker elevated local privileges, enabling access to agent process memory, configuration files, or stored API keys/credentials used by agent orchestration services—representing a credential-theft and lateral-movement risk to agent infrastructure.

Affected Systems

Red Hat Enterprise Linux and Fedora systems with Automatic Bug Reporting Tool (ABRT) installed, particularly older/EoL versions where ABRT runs with elevated privileges and handles crash report files with predictable naming conventions.

Indicators of Compromise

• No specific file hashes, IPs, or domains published; exploitation indicators include unexpected symlinks in ABRT working directories (e.g., /var/tmp/abrt or /var/spool/abrt) and unauthorized privilege changes correlated with ABRT crash-handling events.

Remediation Steps

1. 1

   Upgrade or Migrate

   Since the affected ABRT version may be end-of-life, migrate to a currently supported Red Hat Enterprise Linux release with a patched ABRT package.

2. 2

   Apply Vendor Patch

   If a supported version is in use, apply Red Hat's official security patch addressing CVE-2015-5287 immediately.

3. 3

   Restrict Local Access

   Limit local user permissions and access to systems running ABRT to trusted administrators only, reducing the attack surface for symlink-based privilege escalation.

4. 4

   Disable ABRT if Unused

   On systems where automatic bug reporting is not required, disable or remove the ABRT service entirely to eliminate the vulnerable component.

5. 5

   Monitor for Exploitation

   Implement file integrity monitoring on ABRT working directories to detect symlink creation or anomalous file operations indicative of exploitation attempts.

6. 6

   Harden Agent Host Environments

   For hosts running AI agent or LLM orchestration workloads, audit local privilege boundaries and rotate any credentials or API keys accessible from affected systems as a precaution.