Vulnerability Monitor

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CVE-1999-1481

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

Security Impact Summary

CVE-1999-1481 is a security vulnerability that . Impacting 1 product from national_science_foundation organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 1999, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.

Published

1999-12-31T05:00:00.000

Last Modified

2025-04-03T01:03:51.193

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	national_science_foundation	squid_web_proxy	1.0	Yes
Application	national_science_foundation	squid_web_proxy	1.0novm	Yes
Application	national_science_foundation	squid_web_proxy	1.1	Yes
Application	national_science_foundation	squid_web_proxy	2.1	Yes
Application	national_science_foundation	squid_web_proxy	2.2	Yes

References

http://www.securityfocus.com/archive/1/33295 ([email protected])
http://www.securityfocus.com/bid/741 Exploit, Patch, Vendor Advisory ([email protected])
http://www.squid-cache.org/Versions/v2/2.2/bugs/ Patch, Vendor Advisory ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/3433 ([email protected])
http://www.securityfocus.com/archive/1/33295 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/741 Exploit, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.squid-cache.org/Versions/v2/2.2/bugs/ Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/3433 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For national_science_foundation's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.