A vulnerability was found in Squid Web Proxy up to 4.8 (Firewall Software). It has been classified as critical. This affects an unknown code of the file cachemgr.cgi. The manipulation of the argument hostname as part of a Parameter leads to a injection vulnerability. CWE is classifying the issue as CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. This is going to have an impact on confidentiality, and integrity. The summary by CVE is:

Squid before 4.9, when certain web browsers are used, mishandles HTML in the host (aka hostname) parameter to cachemgr.cgi.

The weakness was presented 03/20/2020 (GitHub Repository). The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2019-18860 since 11/11/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1055 for this issue.

Upgrading to version 4.9 eliminates this vulnerability.

Productinfo

Type

• Firewall Software

Vendor

• Squid

Name

• Web Proxy

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6
• 4.7
• 4.8

License

• open-source

CPE 2.3info

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CPE 2.2info

• 🔍
• 🔍
• 🔍

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