CVE-2021-31798: cyberark credential_provider Insufficient Entropy
CVSS: 4.4v3.1MediumModified
Published 02-09-2021Last modified 03-08-2024
Vulnerability summary
CVE-2021-31798 is a medium (CVSS 4.4) Insufficient Entropy vulnerability in cyberark credential_provider. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 36.9% of scored vulnerabilities.
CVSS score
4.4/10
010
Medium · v3.1 (NVD)EPSS score
0.44%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 02-09-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
The effective key space used to encrypt the cache in CyberArk Credential Provider prior to 12.1 has low entropy, and under certain conditions a local malicious user can obtain the plaintext of cache files.
CVSS metrics
2 scores · 1 source · 2 versionsMedium 4.4Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:NSourcesSingle source
Low 1.9Preferred score · NVD (NIST)
AV:L/AC:M/Au:N/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
0.44%
Chance of exploitation in the next 30 days
Percentile
37%
Versus all other CVEs
30-day change
0.00 pp
From 0.44% on 21-09-2026
21-09-202621-10-2026
EPSS score0.44%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Cyberark1 product
- credential_provider< 12.1
1 vendor · 1 product
References
4 links- packetstormsecurity.com/files/164035/CyberArk-Credential-Provider-Local-Cache-Decryption.htmlX Refsource MISCThird Party AdvisoryVDB Entry