CVE-2018-1000078

MEDIUM

Description

RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a Cross Site Scripting (XSS) vulnerability in gem server display of homepage attribute that can result in XSS. This attack appear to be exploitable via the victim must browse to a malicious gem on a vulnerable gem server. This vulnerability appears to have been fixed in 2.7.6.

References

http://blog.rubygems.org/2018/02/15/2.7.6-released.html

https://access.redhat.com/errata/RHSA-2018:3729

https://access.redhat.com/errata/RHSA-2018:3730

https://access.redhat.com/errata/RHSA-2018:3731

https://github.com/rubygems/rubygems/commit/66a28b9275551384fdab45f3591a82d6b59952cb

https://lists.debian.org/debian-lts-announce/2018/04/msg00000.html

https://lists.debian.org/debian-lts-announce/2018/04/msg00001.html

https://lists.debian.org/debian-lts-announce/2018/04/msg00023.html

https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html

https://usn.ubuntu.com/3621-1/

https://www.debian.org/security/2018/dsa-4219

https://www.debian.org/security/2018/dsa-4259

Details

Source: MITRE

Published: 2018-03-13

Updated: 2018-11-30

Type: CWE-79

Risk Information

CVSS v2.0

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 6.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Impact Score: 2.7

Exploitability Score: 2.8

Severity: MEDIUM