Path traversal in Brocade Fabric OS - CVE-2021-27798

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Main Vulnerability Database Vulnerabilities #VU65809

Path traversal in Brocade Fabric OS - CVE-2021-27798

Published: July 27, 2022


Vulnerability identifier: #VU65809
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-27798
CWE-ID: CWE-22
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A local user with “user” or “factory” privileges can list the entirety of the filesystem utilizing the “more” binary and tab-completion.


Affected software

Brocade Fabric OS
HPE 8/8 SAN Switch
HPE 8/24 SAN Switch
Brocade 8Gb SAN Switch for HPE BladeSystem c-Class
HPE 1606 Extension SAN Switch
Connectrix (Brocade)

How to mitigate CVE-2021-27798

Update to the latest supported version of Brocade Fabric OS.

Connectrix (Brocade) - addressed in versions 7.4.2j1, 8.2.3c1, 9.0.1e1, 9.1.1a

External References

Related Security Bulletins