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CVE-2020-15810

Description

An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Smuggling attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the proxy cache and any downstream caches with content from an arbitrary source. When configured for relaxed header parsing (the default), Squid relays headers containing whitespace characters to upstream servers. When this occurs as a prefix to a Content-Length header, the frame length specified will be ignored by Squid (allowing for a conflicting length to be used from another Content-Length header) but relayed upstream.

Risk Information

Base Score
6.5
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
EPSS Score
Exploitation Probability
0.211

Associated Vulnerability

VulnerabilityOS Platform
Multiple Vulnerabilities are affected in IBM Security Guardium 10.5Windows
Multiple Vulnerabilities are affected in IBM Security Guardium 10.6Windows
Multiple Vulnerabilities are affected in IBM Security Guardium 11.1Windows
Multiple Vulnerabilities are affected in IBM Security Guardium 11.2Windows
Multiple Vulnerabilities are affected in IBM Security Guardium 11.3Windows
Multiple Vulnerabilities are affected in IBM Security Guardium 11.0Windows
squid security update(DSA-4751-1) squid_4.6-1+deb10u4_i386.debLinux
squid security update(DSA-4751-1) squid_4.6-1+deb10u4_amd64.debLinux
Web proxy cache server (USN-4477-1) squid_4.10-1ubuntu1.2_amd64.debLinux
Web proxy cache server (USN-4551-1) squid_3.5.27-1ubuntu1.9_i386.debLinux
Web proxy cache server (USN-4551-1) squid_3.5.27-1ubuntu1.9_amd64.debLinux
Web proxy cache server (USN-4551-1) squid_3.5.12-1ubuntu7.15_i386.debLinux
Web proxy cache server (USN-4551-1) squid_3.5.12-1ubuntu7.15_amd64.debLinux
(RHSA-2020:4082) squid security update squid-3.5.20-17.el7_9.4.x86_64.rpmLinux
(RHSA-2020:4082) squid security update squid-migration-script-3.5.20-17.el7_9.4.x86_64.rpmLinux
(RHSA-2020:4082) squid security update squid-sysvinit-3.5.20-17.el7_9.4.x86_64.rpmLinux
Squid update (ELSA-2020-4082) squid-3.5.20-17.el7_9.4.x86_64.rpmLinux
Squid-migration-script update (ELSA-2020-4082) squid-migration-script-3.5.20-17.el7_9.4.x86_64.rpmLinux
Squid-sysvinit update (ELSA-2020-4082) squid-sysvinit-3.5.20-17.el7_9.4.x86_64.rpmLinux
(CESA-2020:4082) squid security update squid-3.5.20-17.el7_9.4.x86_64.rpmLinux
(CESA-2020:4082) squid security update squid-migration-script-3.5.20-17.el7_9.4.x86_64.rpmLinux
(CESA-2020:4082) squid security update squid-sysvinit-3.5.20-17.el7_9.4.x86_64.rpmLinux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234