by Kastro
Paper/Archive/CVE-2021-34993

CVE-2021-34993

Commvault CommCell — This vulnerability allows remote attackers to bypass authentication on affected installations of Commvault CommCell 11.22.22.

EPSS 5%CVSS 9.8
critical.is priorityof 100
48
CVSS 9.8 (CNA, NVD agree)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 92.7.927 × 2018.5No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

This vulnerability allows remote attackers to bypass authentication on affected installations of Commvault CommCell 11.22.22. Authentication is not required to exploit this vulnerability. The specific flaw exists within the CVSearchService service. The issue results from the lack of proper validation prior to authentication. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-13706.

Affected

ProductAffectedFixed inSource
CommCell11.22.22–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
zdi (CNA)9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refzerodayinitiative.com/advisories/ZDI-21-1328