Unauthenticated out of bounds heap write in bmcweb
CVE-2022-2809

8.2HIGH

Key Information:

Vendor

Openbmc Project

Status
Openbmc
Vendor
CVE Published:
27 October 2022

Badges

👾 Exploit Exists

What is CVE-2022-2809?

A vulnerability in bmcweb of OpenBMC Project allows user to cause denial of service. When fuzzing the multipart_parser code using AFL++ with address sanitizer enabled to find smallest memory corruptions possible. It detected problem in how multipart_parser handles unclosed http headers. If long enough http header is passed in the multipart form without colon there is one byte overwrite on heap. It can be conducted multiple times in a loop to cause DoS.

Affected Version(s)

OpenBMC 2.10

References

https://github.com/openbmc/bmcweb

CVSS V3.1

Score:
8.2
Severity:
HIGH
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Finder: Jakub Rozanski, Intel Corporation
Remediation: Krzysztof Grobelny, Intel Corporation
.