HTTP Request Smuggling Vulnerability in Squid Proxy Server
CVE-2020-25097

8.6HIGH

Key Information:

Vendor

Squid-cache

Status
Squid
Vendor
CVE Published:
19 March 2021

What is CVE-2020-25097?

An improper input validation vulnerability has been identified in Squid versions up to 5.0.4. This flaw allows a trusted client to execute HTTP Request Smuggling attacks, bypassing established security controls. This issue is particularly exploitable with specific uri_whitespace configuration settings, potentially granting unauthorized access to restricted services.

References

https://github.com/squid-cache/squid/security/advisories/...
x_refsource_MISC
http://www.squid-cache.org/Versions/v4/changesets/SQUID-2...
x_refsource_MISC
http://www.squid-cache.org/Versions/v5/changesets/SQUID-2...
x_refsource_MISC

CVSS V3.1

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.