CVE-2020-10102 Information disclosure in n/a
An attacker can enumerate valid user emails via inconsistent responses in the password reset feature, facilitating subsequent credential brute-force attacks.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-10102?
CVE-2020-10102 is a medium-severity vulnerability in Zammad Zammad, published on 5 Mar 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An issue was discovered in Zammad 3.0 through 3.2. The Forgot Password functionality is implemented in a way that would enable an anonymous user to guess valid user emails. In the current implementation, the application responds differently depending on whether the input supplied was recognized as associated with a valid user. This behavior could be used as part of a two-stage automated attack. During the first stage, an attacker would iterate through a list of account names to determine which correspond to valid accounts. During the second stage, the attacker would use a list of common passwords to attempt to brute force credentials for accounts that were recognized by the system in the first stage.
Weakness: CWE-203
Which versions are affected by CVE-2020-10102?
It affects 1 product.
Products include Zammad Zammad.
How do I fix CVE-2020-10102?
No fix has been published for CVE-2020-10102 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-10102 being exploited?
There is no known exploitation of CVE-2020-10102 in the wild and no public exploit code.
Other vulnerabilities in Zammad Zammad
Sources
Also known as GHSA-m4jc-c528-7g8x.