MGASA-2020-0252

Advisory lineage Upstream: 2 Downstream: 0
Published: 10 Jun 2020, 22:57
Last modified:16 Apr 2026, 04:25

Vulnerability Summary

Overall Risk (default)
minimal
0/100
CVSS Score
No data
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

10 Jun 2020, 22:57
Published
Vulnerability first disclosed
16 Apr 2026, 04:25
Last Modified
Vulnerability information updated

Description

Updated ruby-rack packages fix security vulnerability Updated ruby-rack packages fix security vulnerabilities: There's a possible information leak / session hijack vulnerability in Rack(RubyGem rack). Attackers may be able to find and hijack sessions by using timing attacks targeting the session id. Session ids are usually stored and indexed in a database that uses some kind of scheme for speeding up lookups of that session id. By carefully measuring the amount of time it takes to look up a session, an attacker may be able to find a valid session id and hijack the session. The session id itself may be generated randomly, but the way the session is indexed by the backing store does not use a secure comparison (CVE-2019-16782). If certain directories exist in a director that is managed by Rack::Directory, an attacker could, using this vulnerability, read the contents of files on the server that were outside of the root specified in the Rack::Directory initializer (CVE-2020-8161).

Affected Systems

  • mageia•ruby-rack

    < 2.0.8-1.mga7

References (6)