CVE-2012-3054 in WebEx Recording Format Player
Summary
by MITRE
Heap-based buffer overflow in the Cisco WebEx Recording Format (WRF) player T27 L through SP11 EP26, T27 LB through SP21 EP10, T27 LC before SP25 EP11, T27 LD before SP32 CP2, and T28 L10N before SP1 allows remote attackers to execute arbitrary code via a crafted WRF file, aka Bug ID CSCtz72977.
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Analysis
by VulDB Data Team • 03/26/2021
The vulnerability identified as CVE-2012-3054 represents a critical heap-based buffer overflow within Cisco WebEx Recording Format player software across multiple versions and release cycles. This flaw exists in the T27 L through SP11 EP26, T27 LB through SP21 EP10, T27 LC before SP25 EP11, T27 LD before SP32 CP2, and T28 L10N before SP1 variants of the software. The vulnerability allows remote attackers to achieve arbitrary code execution through the manipulation of specially crafted WRF files, making it a significant threat to enterprise security infrastructure. The issue stems from inadequate input validation and memory management practices within the WRF player's parsing logic, creating a pathway for malicious actors to overwrite adjacent memory locations and potentially gain complete system control.
The technical exploitation of this vulnerability involves the manipulation of WRF file structures to trigger memory corruption during the parsing process. When the affected WebEx player encounters a crafted file, the buffer overflow occurs in heap memory allocation, allowing attackers to overwrite critical program data structures and potentially redirect execution flow. This type of vulnerability maps directly to CWE-121, heap-based buffer overflow, and represents a classic example of how improper memory handling can lead to privilege escalation and remote code execution. The attack vector is particularly concerning as it requires no user interaction beyond opening the malicious file, making it suitable for drive-by download attacks and phishing campaigns.
The operational impact of this vulnerability extends beyond simple code execution, as it provides attackers with a persistent foothold in enterprise environments where WebEx collaboration tools are widely deployed. Organizations utilizing Cisco WebEx for video conferencing, training, and remote collaboration are at risk of complete system compromise when attackers leverage this vulnerability. The affected software versions span multiple release channels, indicating a widespread exposure across various Cisco product lines and customer deployments. This vulnerability also aligns with ATT&CK technique T1203, Exploitation for Client Execution, as it specifically targets client-side applications to achieve remote code execution. The potential for lateral movement within networks increases significantly when attackers can execute arbitrary code on systems running vulnerable WebEx players, particularly in environments where these tools are used for business-critical communications.
Mitigation strategies for CVE-2012-3054 should prioritize immediate patch deployment for all affected Cisco WebEx player versions, as the vulnerability has been extensively documented and exploited in the wild. Network administrators should implement strict file validation policies and consider blocking WRF file types at network boundaries where possible. The implementation of application whitelisting controls can prevent execution of unauthorized binaries, while endpoint protection solutions should be configured to monitor for suspicious memory allocation patterns. Organizations should also conduct comprehensive vulnerability assessments to identify all systems running affected WebEx software versions and establish monitoring procedures for potential exploitation attempts. Additionally, security teams should review network traffic for unusual patterns related to WebEx file transfers and implement intrusion detection systems trained to recognize exploitation signatures associated with heap-based buffer overflow attacks.