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CVE Record

CVE-2017-3827: A vulnerability in the Multipurpose Internet Mail Extensions (MIME) scanner of Cisco AsyncOS Software for C...

A vulnerability in the Multipurpose Internet Mail Extensions (MIME) scanner of Cisco AsyncOS Software for Cisco Email Security Appliances (ESA) and Web Security Appliances (WSA) could allow an unauthenticated, remote attacker to bypass configured user filters on the device. Affected Products: This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for Cisco ESA and Cisco WSA, both virtual and hardware appliances, that are configured with message or content filters to scan incoming email attachments on the ESA or services scanning content of web access on the WSA. More Information: SCvb91473, CSCvc76500. Known Affected Releases: 10.0.0-203 9.9.9-894 WSA10.0.0-233.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysis

Security readout for executives and security teams

Cisco ESA and WSA appliances running vulnerable AsyncOS could fail to enforce configured attachment or web-content filters. An unauthenticated remote attacker may bypass those filters, reducing the protection organizations expect from email and web gateways. Exposure is limited to Cisco ESA or WSA deployments using affected AsyncOS releases and configured filtering features. Organizations without these appliances, or without the relevant filters enabled, are not indicated as affected by the supplied sources. Treat as a prioritized gateway hardening issue, especially where Cisco ESA or WSA is a primary malware or content-control layer. Urgency is lower than confirmed exploited RCE, but delayed remediation weakens perimeter filtering. Mitigation focus: Check Cisco’s advisory for the applicable first fixed AsyncOS release.; Upgrade affected ESA and WSA appliances per Cisco guidance.; Inventory virtual and hardware ESA/WSA appliances running AsyncOS..

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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2Source links

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Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/aCisco AsyncOS Software for Cisco ESA and Cisco WSACisco AsyncOS Software for Cisco ESA and Cisco WSAListed
Weakness

CWE details

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