PT-2017-2991 · Cisco · Cisco Ios

Published 2017-09-27 · Updated 2025-01-27 · CVE-2017-12234

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Cisco IOS Software versions 12.4 through 15.6

Description The issue is due to the improper parsing of crafted Common Industrial Protocol (CIP) packets destined to an affected device, which could allow an unauthenticated, remote attacker to cause the device to reload, resulting in a denial of service (DoS) condition. An attacker could exploit this by sending crafted CIP packets to be processed by an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.

Recommendations For Cisco IOS Software versions 12.4 through 15.6, update to a version that includes the software updates released by Cisco that address these vulnerabilities. As a temporary workaround, consider restricting access to the CIP feature to minimize the risk of exploitation. Avoid using the CIP protocol until the issue is resolved. There are no workarounds that address these vulnerabilities.

Fix

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2017-02336

CVE-2017-12234

Affected Products

Cisco Ios

References · 9

• https://osv.dev/vulnerability/CVE-2017-12234 · Vendor Advisory
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-cip · Vendor Advisory
• https://bdu.fstec.ru/vul/2017-02336 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2017-12234 · Security Note
• https://t.me/cvenotify/108716 · Telegram Post
• http://securityfocus.com/bid/101038 · Note
• https://cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-12234 · Note
• http://securitytracker.com/id/1039459 · Note
• https://cisa.gov/sites/default/files/csv/known_exploited_vulnerabilities.csv · Note