Vulnerability Details CVE-2021-27877
An issue was discovered in Veritas Backup Exec before 21.2. It supports multiple authentication schemes: SHA authentication is one of these. This authentication scheme is no longer used in current versions of the product, but hadn't yet been disabled. An attacker could remotely exploit this scheme to gain unauthorized access to an Agent and execute privileged commands.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.01
EPSS Ranking 75.6%
CVSS Severity
CVSS v3 Score 8.2
CVSS v2 Score 7.5
Proposed Action
Veritas Backup Exec (BE) Agent contains an improper authentication vulnerability that could allow an attacker unauthorized access to the BE Agent via SHA authentication scheme.
Ransomware Campaign
Known
References
- http://packetstormsecurity.com/files/168506/Veritas-Backup-Exec-Agent-Remote-Code-Execution.html
- https://www.veritas.com/content/support/en_US/security/VTS21-001#issue1
- http://packetstormsecurity.com/files/168506/Veritas-Backup-Exec-Agent-Remote-Code-Execution.html
- https://www.veritas.com/content/support/en_US/security/VTS21-001#issue1
Products affected by CVE-2021-27877
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cpe:2.3:a:veritas:backup_exec:10.0
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cpe:2.3:a:veritas:backup_exec:14.1.1786.1126
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cpe:2.3:a:veritas:backup_exec:14.2.1180.3160
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cpe:2.3:a:veritas:backup_exec:15.1180
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cpe:2.3:a:veritas:backup_exec:16.0.1142.1327
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cpe:2.3:a:veritas:backup_exec:16.1142
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cpe:2.3:a:veritas:backup_exec:20.0
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cpe:2.3:a:veritas:backup_exec:20.0.1188.2734
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cpe:2.3:a:veritas:backup_exec:21.0
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cpe:2.3:a:veritas:backup_exec:21.0.1200.1217
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cpe:2.3:a:veritas:backup_exec:9.0
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cpe:2.3:a:veritas:backup_exec:9.0.4019
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cpe:2.3:a:veritas:backup_exec:9.1.307