CVE-2021-36983 : Security Advisory and Response
Understand the impact of CVE-2021-36983, a vulnerability in Replay Sorcery 0.6.0 that enables local attackers to escalate privileges to root level. Learn about the technical details, affected systems, exploitation mechanism, and mitigation steps.
Replay-sorcery-kms in Replay Sorcery 0.6.0 allows a local attacker to gain root privileges via a symlink attack on /tmp/replay-sorcery or /tmp/replay-sorcery/device.sock.
Understanding CVE-2021-36983
This CVE describes a vulnerability in Replay Sorcery 0.6.0 that could potentially enable a local attacker to escalate privileges to root level through a symlink attack.
What is CVE-2021-36983?
The CVE-2021-36983 vulnerability allows a local attacker to exploit symlink vulnerabilities in Replay Sorcery 0.6.0, resulting in the unauthorized escalation of privileges to root.
The Impact of CVE-2021-36983
If successfully exploited, the vulnerability could lead to a local attacker gaining root privileges on the affected system, enabling them to carry out malicious activities with elevated access.
Technical Details of CVE-2021-36983
The technical details of CVE-2021-36983 include:
Vulnerability Description
The vulnerability lies in the replay-sorcery-kms component of Replay Sorcery 0.6.0, allowing attackers to exploit symlink vulnerabilities in /tmp/replay-sorcery or /tmp/replay-sorcery/device.sock.
Affected Systems and Versions
Replay Sorcery 0.6.0 is the affected version by CVE-2021-36983.
Exploitation Mechanism
Attackers can exploit this vulnerability by manipulating symlinks in the specified directories (/tmp/replay-sorcery or /tmp/replay-sorcery/device.sock) to gain root privileges on the system.
Mitigation and Prevention
To mitigate the risks associated with CVE-2021-36983, consider the following measures:
Immediate Steps to Take
- Implement proper file and directory permissions to limit symlink vulnerabilities.
- Monitor system logs for any suspicious symlink activities.
Long-Term Security Practices
- Regularly update the Replay Sorcery software to the latest patched versions.
- Conduct security audits to identify and address symlink-related weaknesses.
Patching and Updates
Apply patches or updates released by Replay Sorcery to address the CVE-2021-36983 vulnerability and enhance system security.