Home/CVE/An issue was discovered in Squid through 4.13 and 5.x through 5.0.4. Due to improper input validation, it allows a trust
CVE

CVE-2020-25097

An issue was discovered in Squid through 4.13 and 5.x through 5.0.4. Due to improper input validation, it allows a trust

An issue was discovered in Squid through 4.13 and 5.x through 5.0.4. Due to improper input validation, it allows a trusted client to perform HTTP Request Smuggling and access services otherwise forbidden by the security controls. This occurs for certain uri_whitespace configuration settings.

HIGH · CVSS 8.6 EPSS 0.00583
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
▤

Affected Products & Versions

5
squid-cache squid>= 2.0 and < 4.14
squid-cache squid>= 5.0.1 and < 5.0.5
debian linuxall versions
fedoraproject fedoraall versions
netapp cloud managerall versions
▣

Scoring & Timeline

8.6
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD19 Mar 2021 · 05:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
⚑

Vendor Advisories

11
suse-csafopenSUSE-SU-2024:11403-1
suse-csafSUSE-SU-2022:2392-1
suse-csafSUSE-SU-2022:14914-1
suse-csafopenSUSE-SU-2021:1961-1
suse-csafopenSUSE-SU-2021:0879-1
🔗

References & Sources

9
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.squid-cache.org/Versions/v4/changesets/SQUID-2020_11.patchMailing ListPatchVendor Advisory
http://www.squid-cache.org/Versions/v5/changesets/SQUID-2020_11.patchMailing ListPatchVendor Advisory
https://github.com/squid-cache/squid/security/advisories/GHSA-jvf6-h9gj-pmj6PatchThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DJMDRVV677AJL4BZAOLCT5LMFCGBZTC2/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FBXFWKIGXPERDVQXG556LLPUOCMQGERC/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/O3RYBDMJCPYGOSURWDR3WJTE474UFT77/
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