Multiple vulnerabilities in CyberArk Credential Provider



| Updated: 2021-10-11
Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2021-31796
CVE-2021-31797
CVE-2021-31798
CWE-ID CWE-326
CWE-362
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
 Credential Provider
Client/Desktop applications / Other client software

Vendor CyberArk

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Inadequate Encryption Strength

EUVDB-ID: #VU56270

Risk: Medium

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green]

CVE-ID: CVE-2021-31796

CWE-ID: CWE-326 - Inadequate Encryption Strength

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the effective key space used to encrypt the passwords is significantly reduced. A remote attacker can gain access to sensitive information on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Credential Provider: All versions

CPE2.3 External links

https://www.cyberark.com/resources/blog
https://korelogic.com/Resources/Advisories/KL-001-2021-008.txt
https://seclists.org/fulldisclosure/2021/Sep/1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Race condition

EUVDB-ID: #VU56271

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-31797

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to a race condition in the user identification mechanism. A remote attacker can exploit the race and disclose passwords.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Credential Provider: All versions

CPE2.3 External links

https://www.cyberark.com/resources/blog
https://korelogic.com/Resources/Advisories/KL-001-2021-009.txt
https://seclists.org/fulldisclosure/2021/Sep/2


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Inadequate Encryption Strength

EUVDB-ID: #VU56272

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-31798

CWE-ID: CWE-326 - Inadequate Encryption Strength

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to the effective key space used to encrypt the cache has low entropy. A local user can obtain the plaintext of cache files.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Credential Provider: All versions

CPE2.3 External links

https://www.cyberark.com/resources/blog
https://seclists.org/fulldisclosure/2021/Sep/3
https://korelogic.com/Resources/Advisories/KL-001-2021-010.txt


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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