Deserialization of untrusted data in Puppet Agent - CVE-2017-2295
Published: May 30, 2017
Vulnerability identifier: #VU6804
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-2295
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to the application performs YAML deserialization in an unsafe manner. A remote attacker can send to server specially crafted serialized data and execute arbitrary code on the target system.
The vulnerability exists due to the application performs YAML deserialization in an unsafe manner. A remote attacker can send to server specially crafted serialized data and execute arbitrary code on the target system.
Affected software
Puppet Agent
Amazon Linux AMI
Ubuntu
Fedora
puppet (Debian package)
puppet
Amazon Linux AMI
Ubuntu
Fedora
puppet (Debian package)
puppet
How to mitigate CVE-2017-2295
Update to version 4.10.1.
puppet - addressed in versions 4.2.1-5.fc25, 4.6.2-4.fc26