PBN reports:
Mastodon, a social network based on software for servers of the same name, has been found to have a vulnerability that could have allowed attackers to read individual pieces of information. The problem was caused by inadequate filtering of the data transferred during LDAP authentication. The vulnerability allows attackers to smuggle in an LDAP database query, which can be used to read information about users bit by bit. Despite the vulnerability, it was not possible for attackers to get password hashes.
The vulnerability has been labelled CVE-2023-28853, with a risk assessment of “high”. Mastodon versions from 2.5.0 were affected, but the developers have since closed the security gaps in versions 4.1.2, 4.0.4, and 3.5.8. The release notes for the three new Mastodon versions include a description of the vulnerability and version 3.0.6 of Ruby as a security update to address a previous ReDoS vulnerability.
Read more at ParisBeacon.