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CVE-2017-2295

UnknownEPSS 2.40%

Last modified

CVE-2017-2295 is a vulnerability of currently unknown severity. Versions of Puppet prior to 4.10.1 will deserialize data off the wire (from the agent to the server, in this case) with a attacker-specified format. This could be used to force YAML deserialization in an unsafe manner, which would lead to remote code execution. EPSS estimates a 2.40% chance of exploitation in the next 30 days.

Description

Versions of Puppet prior to 4.10.1 will deserialize data off the wire (from the agent to the server, in this case) with a attacker-specified format. This could be used to force YAML deserialization in an unsafe manner, which would lead to remote code execution. This change constrains the format of data on the wire to PSON or safely decoded YAML.

Metrics

EPSS Probability
2.40%

81.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PuppetPuppet<= 4.10.0
DebianDebian Linux8.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2017-2295?
Versions of Puppet prior to 4.10.1 will deserialize data off the wire (from the agent to the server, in this case) with a attacker-specified format. This could be used to force YAML deserialization in an unsafe manner, which would lead to remote code execution. This change constrains the format of data on the wire to PSON or safely decoded YAML.
How severe is CVE-2017-2295?
Severity scoring for CVE-2017-2295 is pending analysis. The EPSS model estimates a 2.40% probability of exploitation in the next 30 days.
How do I fix CVE-2017-2295?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-2295?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST