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CVE-2017-12617: Apache Tomcat Remote Code Execution Vulnerability

criticalknown exploitedpublic exploitCVE-2017-12617
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
When running Apache Tomcat, it is possible to upload a JSP file to the server via a specially crafted request. This JSP could then be requested and any code it contained would be executed by the server.

CSIRTS triage

vendor: Apacheproduct: TomcatRemote code execution
What
Apache Tomcat allows uploading a JSP file via a specially crafted request, which can then be executed by the server.
Who is affected
Deployments of Apache Tomcat are at risk of exploitation.
Urgency
Immediate remediation is necessary due to active exploitation and critical severity.
Action
Upgrade to the latest version of Apache Tomcat.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-03-25
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2017-12617

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2017-12617coverage & exploitation statusNVD · CVE.org

Recent advisories for Apache Tomcat Remote

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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