CVE-2018-0156
Cisco IOS Software and Cisco IOS XE Software Smart Install Denial-of-Service Vulnerability
Exploited in the wild
This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2022-03-03. Federal due date: 2022-03-17.
Apply updates per vendor instructions.
Impact
A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of packet data. An attacker could exploit this vulnerability by sending a crafted packet to an affected device on TCP port 4786. Only Smart Install client switches are affected. Cisco devices that are configured as a Smart Install director are not affected by this vulnerability. Cisco Bug IDs: CSCvd40673.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cisco | Ios | Versions 15.2\(2\)e4, 15.2\(2a\)ja |
| Cisco | Ios Xe | Versions 15.2\(2\)e4, 15.2\(2a\)ja |
Weakness classification
References
- NVD record
- CVE.org record
- CISA KEV catalog
- http://www.securityfocus.com/bid/103569
- http://www.securitytracker.com/id/1040596
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-smi
- http://www.securityfocus.com/bid/103569
- http://www.securitytracker.com/id/1040596
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04
- https://ics-cert.us-cert.gov/advisories/ICSA-18-107-05
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-smi
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0156