Cisco IOS Software and IOS XE Software Extensible Messaging Client Protocol Denial of Service Vulnerability
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
A vulnerability in the Extensible Messaging Client Protocol (XMCP), also referred to as the External Client protocol, of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of malformed XMCP packets. An attacker could exploit this vulnerability by sending a malformed XMCP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload unexpectedly, resulting in a DoS condition. The attacker does not need the XMCP client username to exploit this vulnerability.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- Cisco Cisco IOS XE Software
17.2.1a, 16.12.1y, 16.12.3s, 16.7.1b, 16.6.2, 16.6.5, 16.12.1w, 16.9.1d, 17.3.1, 16.9.4c, 16.7.1, 17.2.1, 16.6.8, 16.9.1b, 16.9.2s, 16.12.4, 16.12.3a, 17.1.1s, 16.11.1a, 16.7.2, 16.11.1b, 16.9.1s, 16.9.3h, 16.9.1c, 16.6.5a, 16.6.3, 16.10.1f, 17.2.1v, 16.8.1e, 16.9.3a, and 257 more
- Cisco IOS
15.2(7)E7, 15.2(8)E3, 15.7(3)M10, 15.8(3)M9, 15.9(3)M7, 15.2(7)E8, 15.2(8)E4, 15.9(3)M7a, 15.2(2)E10c, 15.2(4)E10d, 15.9(3)M6a, 15.9(3)M6b, 15.5(1)SY10, 15.5(1)SY11, 15.2(6)E1a, 15.4(1)SY4, 15.5(1)SY1, 15.2(2)E8, 15.2(6)E1, 15.7(3)M2, 15.2(4)E6, 15.2(1)SY6, 15.2(4)EA7, 15.2(6)E1s, 15.7(3)M3, 15.8(3)M, 15.2(1)SY7, 15.2(4)EA8, 15.8(3)M0a, 15.2(2)E9, and 110 more