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CVE-2020-25097

nvd nist
Published: Mar 19, 2021Modified: Jun 17, 2026

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8.6
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Exploitability: 3.9 / Impact: 4.0
Source: NVD

Description

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.

Affected (7)

Show all products
Squid Cache: Squid · Debian: Debian Linux · Fedoraproject: Fedora · Netapp: Cloud Manager
Squid Cache
1 product
Squid
Debian
1 product
Debian Linux
Fedoraproject
1 product
Fedora
Netapp
1 product
Cloud Manager
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Squid Cache
Squid
From 2.0 to 4.14
Squid
From 5.0.1 to 5.0.5
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Debian Linux
Version 10.0
Configuration C
3 vulnerable
Vulnerable SoftwareAffected Versions
Fedoraproject
Fedora
Version 32
Fedora
Version 33
Fedora
Version 34
Configuration D
1 vulnerable
Vulnerable SoftwareAffected Versions
Cloud Manager
All versions

Related CWEs

CWE-20
Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
CWE-444
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.

References (18)

Source: cve@mitre.org
Mailing ListPatchVendor Advisory
Source: cve@mitre.org
Mailing ListPatchVendor Advisory
Source: cve@mitre.org
PatchThird Party Advisory
Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListPatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListPatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory

Timeline

No history available yet.