HTTP Method Injection Vulnerability in HAProxy by HAProxy Technologies
CVE-2021-39241

5.3MEDIUM

Key Information:

Vendor

Haproxy

Status
Haproxy
Vendor
CVE Published:
17 August 2021

What is CVE-2021-39241?

An HTTP method injection vulnerability exists in HAProxy where unexpected whitespace in method names can mislead servers into interpreting requests incorrectly. This could allow unauthorized access to protected resources, raising significant security concerns for applications relying on HAProxy for load balancing and traffic management.

References

https://www.mail-archive.com/haproxy%40formilux.org/msg41...
x_refsource_MISC
https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=892...
x_refsource_MISC
https://www.debian.org/security/2021/dsa-4960
vendor-advisoryx_refsource_DEBIAN

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.