PT-2021-17622 · Brocade · Brocade Fabric Os

Published 2021-08-12 · Updated 2022-07-12 · CVE-2021-27791

Positive Technologies (AI Summary)

CVSS v2.0

5.5

Medium

Base vector

AV:N/AC:L/Au:S/C:P/I:P/A:N

Name of the Vulnerable Software and Affected Versions: Brocade Fabric OS versions prior to 8.2.3a Brocade Fabric OS versions prior to 9.0.1a

Description: The function used to parse the Authentication header in the Brocade Fabric OS Web application service fails to properly process a malformed authentication header from the client, resulting in reading memory addresses outside the intended range. An unauthenticated attacker could discover a request, which could bypass the authentication process.

Recommendations: For Brocade Fabric OS versions prior to 8.2.3a, update to version 8.2.3a or later to resolve the issue. For Brocade Fabric OS versions prior to 9.0.1a, update to version 9.0.1a or later to resolve the issue.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2021-27791

Affected Products

Brocade Fabric Os

References · 7

• https://osv.dev/vulnerability/CVE-2021-27791 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-27791 · Security Note
• https://broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2021-1491 · Vendor Advisory
• https://security.netapp.com/advisory/ntap-20210819-0002 · Note
• https://t.me/cvenotify/19710 · Telegram Post
• https://t.me/cibsecurity/27232 · Telegram Post
• https://t.me/cvenotify/19225 · Telegram Post