Vulnerability Monitor

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CVE-2015-0607

The Authentication Proxy feature in Cisco IOS does not properly handle invalid AAA return codes from RADIUS and TACACS+ servers, which allows remote attackers to bypass authentication in opportunistic circumstances via a connection attempt that triggers an invalid code, as demonstrated by a connection attempt with a blank password, aka Bug IDs CSCuo09400 and CSCun16016.

Security Impact Summary

CVE-2015-0607 is a security vulnerability that . Impacting 1 product from cisco organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2015, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2015-03-06T03:00:13.470

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.3 (MEDIUM)

CVSSv2 Vector

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

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

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
CWE-287

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	cisco	ios	15.4\(1\)t	Yes
Operating System	cisco	ios	15.4\(1\)t1	Yes
Operating System	cisco	ios	15.4\(1\)t2	Yes
Operating System	cisco	ios	15.4\(1\)t3	Yes
Operating System	cisco	ios	15.4\(1\)t4	Yes
Operating System	cisco	ios	15.4\(2\)t	Yes
Operating System	cisco	ios	15.4\(2\)t1	Yes
Operating System	cisco	ios	15.4\(2\)t2	Yes
Operating System	cisco	ios	15.4\(2\)t3	Yes
Operating System	cisco	ios	15.4\(100\)t	Yes
Operating System	cisco	ios	15.4t	Yes

References

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2015-0607 Vendor Advisory ([email protected])
http://tools.cisco.com/security/center/viewAlert.x?alertId=37711 Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/72794 ([email protected])
http://www.securitytracker.com/id/1031817 ([email protected])
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2015-0607 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://tools.cisco.com/security/center/viewAlert.x?alertId=37711 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/72794 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1031817 (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 cisco'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.