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CVE-1999-1481

MediumPublished

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: Mar 9, 2002
Updated: Aug 1, 2024
Assigning CNA: mitre
Evidence observed: Oct 25, 1999

Primary CVSS

5.0/ 10Medium

nvd · CVSS 2.0

AV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS probability estimate

3.6%

Low · next 30 days

Percentile: 88.9%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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

Sources

National Science Foundation Squid Web Proxy 1.0/1.1/2.1 - Authentication FailureExploit
Oezguer Kesim · linux · Oct 25, 1999

Responsible use

Use vulnerability information only on systems you own or are authorized to test. Kitploit links to public research metadata and does not store exploit code or malicious payloads.