CVE-2020-17477 describes an improper access control vulnerability in UCS@school versions prior to 4.4v5-errata, specifically within the ucs-school-ldap-acls-master component. This flaw allows authenticated users, such as teachers, staff, or school administrators, to read sensitive LDAP password hashes through standard LDAP search requests. With a CVSS score of 6.5 (Medium), this vulnerability has a low attack complexity and requires only low privileges, but grants high confidentiality impact by exposing password hashes like sambaNTPassword. While the potential for an attacker to gain administrator access via NTLM hash is significant, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 4.4CPE matchmatch criteria | cpe:2.3:a:univention:ucs\@school:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.