SARA / Free Tools / CVE / CVE-2018-0447

CVE-2018-0447 — A vulnerability in the anti-spam protection mechanisms of Cisco AsyncOS Software

A vulnerability in the anti-spam protection mechanisms of Cisco AsyncOS Software for the Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass certain content filters on an affected device. The vulnerability is due to incomplete input and

CVSS
— —
EPSS
0.24% (top 52.90%)
CWE
CWE-284
Published
2018-10-05T14:00:00.000Z
Last modified
2024-11-26T14:41:56.071Z
CVSS vector
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01What is this vulnerability?

A vulnerability in the anti-spam protection mechanisms of Cisco AsyncOS Software for the Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass certain content filters on an affected device. The vulnerability is due to incomplete input and validation checking mechanisms for certain Sender Policy Framework (SPF) messages that are sent to an affected device…

02Affected products

VendorProductVersions
CiscoCisco Email Security Appliance (ESA)n/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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