SARA / Free Tools / CVE / CVE-2018-0421

CVE-2018-0421 — A vulnerability in TCP connection management in Cisco Prime Access Registrar cou

A vulnerability in TCP connection management in Cisco Prime Access Registrar could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition when the application unexpectedly restarts. The vulnerability is due to incorrect handling of incoming TCP SYN

CVSS
— —
EPSS
1.49% (top 19.10%)
CWE
CWE-399
Published
2018-10-05T14:00:00.000Z
Last modified
2024-11-26T14:45:57.288Z
CVSS vector
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01What is this vulnerability?

A vulnerability in TCP connection management in Cisco Prime Access Registrar could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition when the application unexpectedly restarts. The vulnerability is due to incorrect handling of incoming TCP SYN packets to specific listening ports. The improper handling of the TCP SYN packets could cause a system file…

02Affected products

VendorProductVersions
CiscoCisco Prime Access Registrarn/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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