CVE-2020-9495 Injection in Apache Archiva
An attacker can retrieve arbitrary user attribute data from the connected LDAP server via a timing-based injection in the login form.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-9495?
CVE-2020-9495 is a medium-severity vulnerability in Apache Archiva, published on 19 Jun 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Apache Archiva login service before 2.2.5 is vulnerable to LDAP injection. A attacker is able to retrieve user attribute data from the connected LDAP server by providing special values to the login form. With certain characters it is possible to modify the LDAP filter used to query the LDAP users. By measuring the response time for the login request, arbitrary attribute data can be retrieved from LDAP user objects.
Weakness: CWE-74
Which versions are affected by CVE-2020-9495?
2 open source packages ship an affected version, including org.apache.archiva:archiva. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.apache.archiva:archiva Maven | All versions | 2.2.5 |
org.apache.archiva:archiva Maven | All versions | 2.2.5 |
Products include Apache Archiva.
How do I fix CVE-2020-9495?
Upgrade org.apache.archiva:archiva to 2.2.5 or later.
Is CVE-2020-9495 being exploited?
There is no known exploitation of CVE-2020-9495 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Apache Archiva
- CVE-2013-2251 Apache Struts Improper Input Validation
- CVE-2016-4469 Cross-site request forgery in n/a
- CVE-2017-5657 Apache Archiva vulnerable to Cross Site Request Forgery
- CVE-2024-27138 Apache Archiva: disabling user registration is not effective
- CVE-2024-27139 Apache Archiva: incorrect authentication potentially leading to account takeover
Sources
Also known as GHSA-v83p-xwm9-v4g8.