Vulnerability identifier: #VU23688
Vulnerability risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-208
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Rack
Web applications /
Modules and components for CMS
Vendor: Rack
Description
The vulnerability allows a remote attacker to perform a hijack victim's session.
The vulnerability exists due to an indexing issue in Rack (RubyGem rack) when processing user sessions. A remote attacker can guess session identifier and hijack victim's session.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Rack: 2.0 - 2.0.7, 1.2.0, 1.6 - 1.6.11
External links
http://github.com/rack/rack/commit/7fecaee81f59926b6e1913511c90650e76673b38
http://github.com/rack/rack/security/advisories/GHSA-hrqr-hxpp-chr3
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.