Medium severity · published May 4, 2023
CVE-2023-1894
A Regular Expression Denial of Service (ReDoS) issue was discovered in Puppet Server 7.9.2 certificate validation
5.3
CVSS
0.4%
EPSS
No
On KEV
Description
A Regular Expression Denial of Service (ReDoS) issue was discovered in Puppet Server 7.9.2 certificate validation. An issue related to specifically crafted certificate names significantly slowed down server operations.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PE
Puppet Enterprise · Puppet
2021.7.1; 2023.0 · source: NVD
PS
Puppet Server · Puppet
7.9.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-1894
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-1894
Vendor Advisory
https://www.puppet.com/security/cve/cve-2023-1894-puppet-server-redos
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