CVE-2021-37151 Information disclosure in Identity
Attackers can enumerate valid usernames via response length differences in specific MFA configurations, aiding brute-force attacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-37151?
CVE-2021-37151 is a medium-severity vulnerability in CyberArk Identity, published on 1 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
CyberArk Identity 21.5.131, when handling an invalid authentication attempt, sometimes reveals whether the username is valid. In certain authentication policy configurations with MFA, the API response length can be used to differentiate between a valid user and an invalid one (aka Username Enumeration). Response differentiation enables attackers to enumerate usernames of valid application users. Attackers can use this information to leverage brute-force and dictionary attacks in order to discover valid account information such as passwords.
Weakness: CWE-203
Which versions are affected by CVE-2021-37151?
It affects 1 product.
Products include Cyberark Identity.
How do I fix CVE-2021-37151?
No fix has been published for CVE-2021-37151 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-37151 being exploited?
There is no known exploitation of CVE-2021-37151 in the wild and no public exploit code.
Other vulnerabilities in CyberArk Identity
- CVE-2024-42340 CyberArk - CWE-602: Client-Side Enforcement of Server-Side Security
- CVE-2022-22700 Information disclosure in CyberArk Identity
- CVE-2024-42337 CyberArk - CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
- CVE-2024-42338 CyberArk - CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
- CVE-2024-42339 CyberArk - CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Sources
Also known as GHSA-rq35-f9g6-4534.