Improper input validation in Cisco Asr 1001-Hx
CVE-2018-0158
A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a memory leak or a reload of an affected device that leads to a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain IKEv2 packets. An attacker could exploit this vulnerability by sending crafted IKEv2 packets to an affected device to be processed. A successful exploit could cause an affected device to continuously consume memory and eventually reload, resulting in a DoS condition. Cisco Bug IDs: CSCvf22394.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.072 (93.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Cisco Asr_1001-hx
- Cisco Asr_1001-x
- Cisco Asr_1002-hx
- Cisco Asr_1002-x
- Cisco Asr_1004
- Cisco Asr_1006
- Cisco Asr_1006-x
- Cisco Asr_1009-x
- Cisco Asr_1013
- Cisco Ios — versions 15.5(3)s1.8, 15.5(3)s1.9, 15.5\(3\)s1.5
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 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link, x_refsource_BID)
- psirt@cisco.com (US Government Resource, VDB Entry, Third Party Advisory, x_refsource_MISC)
- psirt@cisco.com (US Government Resource, VDB Entry, Third Party Advisory, x_refsource_MISC)
- psirt@cisco.com (x_refsource_CONFIRM, Vendor Advisory)
- 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-2018-0158?
- CVE-2018-0158 is a high-severity vulnerability in Cisco Asr 1001-Hx, classified under Improper Input Validation. CVSS score: 8.6/10. Published 2018-03-28.
- How severe is CVE-2018-0158?
- High severity. CVSS v3 base score is 8.6 out of 10.
- Is CVE-2018-0158 known to be exploited?
- Yes. CVE-2018-0158 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.