Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2023-28853 |
CWE-ID | CWE-90 |
Exploitation vector | Network |
Public exploit | Public exploit code for vulnerability #1 is available. |
Vulnerable software Subscribe |
Mastodon Server applications / Other server solutions |
Vendor | Mastodon |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU75710
Risk: Medium
CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:P/RL:O/RC:C]
CVE-ID: CVE-2023-28853
CWE-ID:
CWE-90 - Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to improper input validation when processing DLAP queries. A remoteuser can send a specially crafted LDAP query to the application, bypass authentication process and gain unauthorized access to sensitive information.
MitigationInstall updates from vendor's website.
Vulnerable software versionsMastodon: 2.5.0 - 4.1.1
CPE2.3http://github.com/mastodon/mastodon/security/advisories/GHSA-38g9-pfm9-gfqv
http://github.com/mastodon/mastodon/pull/24379
http://github.com/mastodon/mastodon/releases/tag/v3.5.8
http://github.com/mastodon/mastodon/blob/94cbd808b5b3e7999c7e77dc724b7e8c9dd2bdec/app/models/concerns/ldap_authenticable.rb#L7-L14
http://github.com/mastodon/mastodon/blob/94cbd808b5b3e7999c7e77dc724b7e8c9dd2bdec/config/initializers/devise.rb#L398-L414
http://github.com/mastodon/mastodon/releases/tag/v4.1.2
http://github.com/mastodon/mastodon/releases/tag/v4.0.4
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.