Session hijacking in RubyGems Rack
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2019-16782 |
| CWE-ID | CWE-208 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Rack Web applications / Modules and components for CMS |
| Vendor | Rack |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Information Exposure Through Timing Discrepancy
EUVDB-ID: #VU23688
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: CVE-2019-16782
CWE-ID:
CWE-208 - Information Exposure Through Timing Discrepancy
Exploit availability: No
DescriptionThe 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.
Install updates from vendor's website.
Vulnerable software versionsRack: 1.2.0 - 2.0.7
External linkshttp://github.com/rack/rack/commit/7fecaee81f59926b6e1913511c90650e76673b38
http://github.com/rack/rack/security/advisories/GHSA-hrqr-hxpp-chr3
Q & A
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.
