Snyk has a published code exploit for this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learningUpgrade org.jenkins-ci.main:jenkins-core
to version 2.426.3, 2.440.1, 2.442 or higher.
org.jenkins-ci.main:jenkins-core is an open source automation server.
Affected versions of this package are vulnerable to Improper Access Control via the CLI command parser. An attacker can read arbitrary files on the Jenkins controller file system by supplying an '@' character followed by a file path in an argument.
Notes:
Attackers with Overall/Read permission can read entire files.
Attackers without Overall/Read permission can read the first few lines of files. The number of lines that can be read depends on available CLI commands.
Disabling access to the CLI is expected to prevent exploitation completely. Doing so is strongly recommended to administrators unable to immediately update to Jenkins 2.442, LTS 2.426.3. Applying this workaround does not require a Jenkins restart. For instructions, see the documentation for this workaround.