Arbitrary Header Injection in Go ReverseProxy Configuration
CVE-2021-33197

5.3MEDIUM

Key Information:

Vendor

Golang

Status
Go
Vendor
CVE Published:
2 August 2021

What is CVE-2021-33197?

Older versions of Go, specifically prior to 1.15.13 and 1.16.x before 1.16.5, present a vulnerability in the ReverseProxy component from the net/http/httputil package. This vulnerability allows an attacker to manipulate and inject arbitrary headers based on specific configurations of ReverseProxy, potentially enabling further attacks or unauthorized access to system resources.

References

https://groups.google.com/g/golang-announce
x_refsource_MISC
https://groups.google.com/g/golang-announce/c/RgCMkAEQjSI
x_refsource_MISC
https://security.gentoo.org/glsa/202208-02
vendor-advisoryx_refsource_GENTOO

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

.