#VU8058 Session hijacking in RubyGems - CVE-2017-0902

Vulnerability identifier: #VU8058

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-0902

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
RubyGems
Universal components / Libraries / Libraries used by multiple products

Vendor: Ruby

Description
The vulnerability allows a remote attacker to hijack the target user's session.

The weakness exists due to improper access control. A remote attacker can hijack DNS sessions.

Mitigation
Update to version 2.6.13.

Vulnerable software versions

RubyGems: 2.2.0 - 2.4.1

---

External links
https://www.ruby-lang.org/en/news/2017/08/29/multiple-vulnerabilities-in-rubygems/

---

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.