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CVE-1999-1481

5.0 · MEDIUM

Squid 2.2.STABLE5 and below, when using external authentication, allows attackers to bypass access controls via a newline in the user/password pair.

Published Dec 31, 1999national_science_foundationEPSS 3.57%

Overview

CVE-1999-1481 is a medium-severity vulnerability affecting national_science_foundation squid_web_proxy. It was published on December 31, 1999 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Squid 2.2.STABLE5 and below, when using external authentication, allows attackers to bypass access controls via a newline in the user/password pair.

Remediation

Check the references section for vendor advisories and patches from national_science_foundation. Update squid_web_proxy to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refwww.securityfocus.com/archive/1/33295Refwww.securityfocus.com/bid/741Refwww.squid-cache.org/Versions/v2/2.2/bugs/Refexchange.xforce.ibmcloud.com/vulnerabilities/3433Refwww.securityfocus.com/archive/1/33295Refwww.securityfocus.com/bid/741Refwww.squid-cache.org/Versions/v2/2.2/bugs/Refexchange.xforce.ibmcloud.com/vulnerabilities/3433

How CyberStrike helps

Frequently asked questions

What is CVE-1999-1481?

CVE-1999-1481 is a medium-severity vulnerability affecting national_science_foundation squid_web_proxy. It was published on December 31, 1999 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-1999-1481?

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-1999-1481?

Check the references section for vendor advisories and patches from national_science_foundation. Update squid_web_proxy to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-1999-1481?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-1999-1481 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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