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CVE-2021-27878

An issue was discovered in Veritas Backup Exec before 21.2.

Published
Last modified
published
Listed in CISA KEV
None on Exploit-DB, Metasploit or GitHub

Summary

Veritas Backup Exec, a backup software product, is affected by this vulnerability. An attacker could bypass its authentication between client and agent components and run arbitrary commands on the system with system-level privileges, potentially taking full control of the affected machine.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

An issue was discovered in Veritas Backup Exec before 21.2. The communication between a client and an Agent requires successful authentication, which is typically completed over a secure TLS communication. However, due to a vulnerability in the SHA Authentication scheme, an attacker is able to gain unauthorized access and complete the authentication process. Subsequently, the client can execute data management protocol commands on the authenticated connection. The attacker could use one of these commands to execute an arbitrary command on the system using system privileges.

Timeline

  1. CVE published
  2. Added to CISA KEV

    CISA has evidence of exploitation in the wild

  3. CISA remediation deadline

    Due date for US federal agencies to patch

  4. Record last updated
  5. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • n/a n/a

    Version range not reported

References 2

veritas.com

packetstormsecurity.com