Inadequate Encryption Vulnerability in CyberArk Credential Provider
CVE-2021-31796

7.5HIGH

Key Information:

Vendor

Cyberark

Status
Credential Provider
Vendor
CVE Published:
2 September 2021

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-31796?

An inadequate encryption vulnerability exists in CyberArk Credential Provider versions prior to 12.1, which could lead to information disclosure risks. The flaw allows potential attackers to exploit a reduced effective key space, possibly narrowing down the number of valid keys for accessing sensitive credential files. This vulnerability enables attackers to decipher credential files by significantly limiting the number of possible encryption keys, potentially compromising sensitive information.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CACredDecoder
Created by unmanarc

References

https://www.cyberark.com/resources/blog
x_refsource_MISC
http://seclists.org/fulldisclosure/2021/Sep/1
x_refsource_MISC
https://korelogic.com/Resources/Advisories/KL-001-2021-00...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

.