Improper input validation in Cisco 1000 Integrated Services Router
CVE-2017-12234
Multiple vulnerabilities in the implementation of the Common Industrial Protocol (CIP) feature in Cisco IOS 12.4 through 15.6 could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerabilities are due to the improper parsing of crafted CIP packets destined to an affected device. An attacker could exploit these vulnerabilities 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. Cisco Bug IDs: CSCvc43709.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.071 (93.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Cisco 1000_integrated_services_router
- Cisco 1100-4g\/6g_integrated_services_router
- Cisco 1100-4g_integrated_services_router
- Cisco 1100-4gltegb_integrated_services_router
- Cisco 1100-4gltena_integrated_services_router
- Cisco 1100-4p
- Cisco 1100-4p_integrated_services_router
- Cisco 1100-6g_integrated_services_router
- Cisco 1100-8p
- Cisco 1100-8p_integrated_services_router
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- psirt@cisco.com (x_refsource_CONFIRM, Vendor Advisory)
- psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, Broken Link, x_refsource_BID)
- psirt@cisco.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK, Broken Link)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2017-12234?
- CVE-2017-12234 is a high-severity vulnerability in Cisco 1000 Integrated Services Router, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2017-09-29.
- How severe is CVE-2017-12234?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2017-12234 known to be exploited?
- Yes. CVE-2017-12234 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-03), indicating it is being actively exploited. 2 public proof-of-concept repositories are indexed.