SARA / Free Tools / KEV / CVE-2018-0158

CVE-2018-0158 on CISA KEV

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 vu

CISA KEV — Actively Exploited

Cisco IOS and XE Software Internet Key Exchange Memory Leak Vulnerability

Vendor / Product
— / Cisco / IOS Software and Cisco IOS XE Software
Added to KEV
2022-03-03
BOD 22-01 due
2022-03-17
Ransomware use
Unknown
CVSS / EPSS
· EPSS 14.56%

01What CISA says about this vulnerability

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…

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

VendorProductVersions
na / Cisco IOS and IOS XECisco IOS and IOS XE

06Detection

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection:

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