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TI-2015-00562 Aliases CVE-2015-0607GHSA-hmcj-2mfv-vx8m

The Authentication Proxy feature in Cisco IOS does not properly handle invalid AAA return…

Priority LOW 24CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Medium
Impact type
Security bypass
Confidentiality · integrity · availability
Partial · None · None
Fix status
No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

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.

Why it matters now

EPSS 0.01969 80th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 11

CPEVersionsRoleVendor
cpe:2.3:o:cisco:ios:15.4\(1\)t:*:*:*:*:*:*:*15.4(1)tVulnerableCisco
cpe:2.3:o:cisco:ios:15.4\(1\)t1:*:*:*:*:*:*:*15.4(1)t1VulnerableCisco
cpe:2.3:o:cisco:ios:15.4\(1\)t2:*:*:*:*:*:*:*15.4(1)t2VulnerableCisco
cpe:2.3:o:cisco:ios:15.4\(1\)t3:*:*:*:*:*:*:*15.4(1)t3VulnerableCisco
cpe:2.3:o:cisco:ios:15.4\(1\)t4:*:*:*:*:*:*:*15.4(1)t4VulnerableCisco
cpe:2.3:o:cisco:ios:15.4\(2\)t:*:*:*:*:*:*:*15.4(2)tVulnerableCisco
cpe:2.3:o:cisco:ios:15.4\(2\)t1:*:*:*:*:*:*:*15.4(2)t1VulnerableCisco
cpe:2.3:o:cisco:ios:15.4\(2\)t2:*:*:*:*:*:*:*15.4(2)t2VulnerableCisco
cpe:2.3:o:cisco:ios:15.4\(2\)t3:*:*:*:*:*:*:*15.4(2)t3VulnerableCisco
cpe:2.3:o:cisco:ios:15.4\(100\)t:*:*:*:*:*:*:*15.4(100)tVulnerableCisco
  • cpe:2.3:o:cisco:ios:15.4\(1\)t:*:*:*:*:*:*:* Versions 15.4(1)t Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios:15.4\(1\)t1:*:*:*:*:*:*:* Versions 15.4(1)t1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios:15.4\(1\)t2:*:*:*:*:*:*:* Versions 15.4(1)t2 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios:15.4\(1\)t3:*:*:*:*:*:*:* Versions 15.4(1)t3 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios:15.4\(1\)t4:*:*:*:*:*:*:* Versions 15.4(1)t4 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios:15.4\(2\)t:*:*:*:*:*:*:* Versions 15.4(2)t Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios:15.4\(2\)t1:*:*:*:*:*:*:* Versions 15.4(2)t1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios:15.4\(2\)t2:*:*:*:*:*:*:* Versions 15.4(2)t2 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios:15.4\(2\)t3:*:*:*:*:*:*:* Versions 15.4(2)t3 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios:15.4\(100\)t:*:*:*:*:*:*:* Versions 15.4(100)t Vulnerable ·Cisco
Show 1 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:cisco:ios:15.4t:*:*:*:*:*:*:*15.4tVulnerableCisco
  • cpe:2.3:o:cisco:ios:15.4t:*:*:*:*:*:*:* Versions 15.4t Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2015-0607
  2. 2026-10-03 Alias added: GHSA-hmcj-2mfv-vx8m

References

Advisory 2

  • TI-2018-00138 Improper input validation in Cisco IOS and IOS XE KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-09019 Improper input validation in Cisco IOS and IOS XE KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-02977 Improper input validation in Cisco IOS and IOS XE Software KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-00135 Memory corruption in Cisco IOS, IOS XE, and IOS XR KEVCVSS 3.1HIGH 8.8
  • TI-2017-04499 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
  • TI-2017-04498 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
See all 617 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences