CVE-2021-27791 — Out-of-bounds Read in Fabric Operating System

CWE-125 — Out-of-bounds ReadCWE-287 — Improper Authentication3 documents3 sources
Severity
5.4MEDIUMNVD
EPSS
0.4%
top 41.42%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Broadcom Fabric Operating SystemBrocade Fabric OS
Timeline
PublishedAug 12
Latest updateMay 24

Description

The function that is used to parse the Authentication header in Brocade Fabric OS Web application service before Brocade Fabric OS v9.0.1a and v8.2.3a 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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:NExploitability: 2.8 | Impact: 2.5

Affected Packages2 packages

▶CVEListV5brocade/brocade_fabric_osBrocade Fabric OS before Brocade Fabric OS v9.0.1a and v8.2.3a
▶NVDbroadcom/fabric_operating_system8.2.1 — 8.2.3a+1

🔴Vulnerability Details

2
GHSA
GHSA-vg73-mjx3-8p9g: The function that is used to parse the Authentication header in Brocade Fabric OS Web application service before Brocade Fabric OS v9↗2022-05-24
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CVEList
CVE-2021-27791: The function that is used to parse the Authentication header in Brocade Fabric OS Web application service before Brocade Fabric OS v9↗2021-08-12
▶
CVE-2021-27791 — Out-of-bounds Read | cvebase