Read the docs
TI-2017-09008 Aliases CVE-2017-12229GHSA-4ppq-5752-xrxr

Improper authentication in Cisco IOS XE

Priority MEDIUM 50CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

A vulnerability in the REST API of the web-based user interface (web UI) of Cisco IOS XE 3.1 through 16.5 could allow an unauthenticated, remote attacker to bypass authentication to the REST API of the web UI of the affected software. The vulnerability is due to insufficient input validation for the REST API of the affected software. An attacker could exploit this vulnerability by sending a malicious API request to an affected device. A successful exploit could allow the attacker to bypass authentication and gain access to the web UI of the affected software. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS XE Software, if the HTTP Server feature is enabled for the device. The newly redesigned, web-based administration UI was introduced in the Denali 16.2 Release of Cisco IOS XE Software. This vulnerability does not affect the web-based administration UI in earlier releases of Cisco IOS XE Software. Cisco Bug IDs: CSCuz46036.

Why it matters now

EPSS 0.05167 92nd 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
—Cisco IOS XECisco IOS XE—No fix listedCNA
  • Cisco IOS XE Vendor— Affected Cisco IOS XE Fixed in — No fix listed CNA

CPE configurations NVD · 17

CPEVersionsRoleVendor
cpe:2.3:o:cisco:ios_xe:3.1.3as:*:*:*:*:*:*:*3.1.3asVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.2.0ja:*:*:*:*:*:*:*3.2.0jaVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.2.1xo:*:*:*:*:*:*:*3.2.1xoVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.4.7asg:*:*:*:*:*:*:*3.4.7asgVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.6.5be:*:*:*:*:*:*:*3.6.5beVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.8.0ex:*:*:*:*:*:*:*3.8.0exVulnerableCisco
cpe:2.3:o:cisco:ios_xe:3.18.3vs:*:*:*:*:*:*:*3.18.3vsVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.1.1:*:*:*:*:*:*:*16.1.1VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.1.2:*:*:*:*:*:*:*16.1.2VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.1.3:*:*:*:*:*:*:*16.1.3VulnerableCisco
  • cpe:2.3:o:cisco:ios_xe:3.1.3as:*:*:*:*:*:*:* Versions 3.1.3as Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.2.0ja:*:*:*:*:*:*:* Versions 3.2.0ja Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.2.1xo:*:*:*:*:*:*:* Versions 3.2.1xo Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.4.7asg:*:*:*:*:*:*:* Versions 3.4.7asg Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.6.5be:*:*:*:*:*:*:* Versions 3.6.5be Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.8.0ex:*:*:*:*:*:*:* Versions 3.8.0ex Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:3.18.3vs:*:*:*:*:*:*:* Versions 3.18.3vs Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.1.1:*:*:*:*:*:*:* Versions 16.1.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.1.2:*:*:*:*:*:*:* Versions 16.1.2 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.1.3:*:*:*:*:*:*:* Versions 16.1.3 Vulnerable ·Cisco
Show 7 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:cisco:ios_xe:16.1.3a:*:*:*:*:*:*:*16.1.3aVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.1.4:*:*:*:*:*:*:*16.1.4VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.2.1:*:*:*:*:*:*:*16.2.1VulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.2.2a:*:*:*:*:*:*:*16.2.2aVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.3.1a:*:*:*:*:*:*:*16.3.1aVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.5.1a:*:*:*:*:*:*:*16.5.1aVulnerableCisco
cpe:2.3:o:cisco:ios_xe:16.5.1c:*:*:*:*:*:*:*16.5.1cVulnerableCisco
  • cpe:2.3:o:cisco:ios_xe:16.1.3a:*:*:*:*:*:*:* Versions 16.1.3a Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.1.4:*:*:*:*:*:*:* Versions 16.1.4 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.2.1:*:*:*:*:*:*:* Versions 16.2.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.2.2a:*:*:*:*:*:*:* Versions 16.2.2a Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.3.1a:*:*:*:*:*:*:* Versions 16.3.1a Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.5.1a:*:*:*:*:*:*:* Versions 16.5.1a Vulnerable ·Cisco
  • cpe:2.3:o:cisco:ios_xe:16.5.1c:*:*:*:*:*:*:* Versions 16.5.1c Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-12229
  2. 2026-10-03 Alias added: GHSA-4ppq-5752-xrxr

References

Advisory 1

  • TI-2023-06904 Cisco is providing an update for the ongoing investigation into observed exploitation of… KEVCVSS 3.1CRITICAL 10.0
  • TI-2018-00122 Memory corruption 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-2017-04498 Memory corruption in Cisco IOS KEVCVSS 3.1HIGH 8.8
  • TI-2017-04497 Memory corruption in Cisco IOS XE Software KEVCVSS 3.1HIGH 8.8
See all 561 →

Sources

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