Vulnerability Monitor

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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.

Published

2017-07-05T15:29:00.207

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 8.2 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:S/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: SINGLE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

6.8

Impact Score

6.4

Weaknesses

Type: Primary
CWE-502

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	puppet	puppet	≤ 4.10.0	Yes
Operating System	debian	debian_linux	8.0	Yes

References

http://www.debian.org/security/2017/dsa-3862 Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/98582 Third Party Advisory, VDB Entry ([email protected])
https://puppet.com/security/cve/cve-2017-2295 Vendor Advisory ([email protected])
http://www.debian.org/security/2017/dsa-3862 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/98582 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://puppet.com/security/cve/cve-2017-2295 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)