CVE-2012-2125
RubyGems HTTPS to HTTP redirect
RubyGems before 1.8.23 can redirect HTTPS connections to HTTP, which makes it easier for remote attackers to observe or modify a gem during installation via a man-in-the-middle attack.
Exploit likelihood
What each source reports
NVD Score used
RubyGems before 1.8.23 can redirect HTTPS connections to HTTP, which makes it easier for remote attackers to observe or modify a gem during installation via a man-in-the-middle attack.
- Record
CVE-2012-2125- CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:N - Updated
- 2026-11-02
CVE List No score
RubyGems before 1.8.23 can redirect HTTPS connections to HTTP, which makes it easier for remote attackers to observe or modify a gem during installation via a man-in-the-middle attack.
- Record
CVE-2012-2125- Updated
- 2026-11-02
EUVDEUVD-2022-1878 No score
RubyGems before 1.8.23 can redirect HTTPS connections to HTTP, which makes it easier for remote attackers to observe or modify a gem during installation via a man-in-the-middle attack.
- Record
EUVD-2022-1878- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-228f-g3h7-3fj3 No score
RubyGems HTTPS to HTTP redirect
RubyGems before 1.8.23 can redirect HTTPS connections to HTTP, which makes it easier for remote attackers to observe or modify a gem during installation via a man-in-the-middle attack.
- Record
GHSA-228f-g3h7-3fj3- Updated
- 2026-11-02
OSV No score
RubyGems before 1.8.23 can redirect HTTPS connections to HTTP, which makes it easier for remote attackers to observe or modify a gem during installation via a man-in-the-middle attack.
- Record
CVE-2012-2125- Updated
- 2026-11-02
OSVDEBIAN-CVE-2012-2125 No score
RubyGems before 1.8.23 can redirect HTTPS connections to HTTP, which makes it easier for remote attackers to observe or modify a gem during installation via a man-in-the-middle attack.
- Record
DEBIAN-CVE-2012-2125- Updated
- 2026-11-02
OSVGHSA-228f-g3h7-3fj3 No score
RubyGems HTTPS to HTTP redirect
RubyGems before 1.8.23 can redirect HTTPS connections to HTTP, which makes it easier for remote attackers to observe or modify a gem during installation via a man-in-the-middle attack.
- Record
GHSA-228f-g3h7-3fj3- Updated
- 2026-11-02
OSVUBUNTU-CVE-2012-2125 No score
RubyGems before 1.8.23 can redirect HTTPS connections to HTTP, which makes it easier for remote attackers to observe or modify a gem during installation via a man-in-the-middle attack.
- Record
UBUNTU-CVE-2012-2125- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
rubygems-updateRubyGems |
before 1.8.23 | 1.8.23 |
rubygemsDebian:12 |
before 1.8.24-1 | 1.8.24-1 |
rubygemsDebian:13 |
before 1.8.24-1 | 1.8.24-1 |
rubygemsDebian:14 |
before 1.8.24-1 | 1.8.24-1 |
rubygems-updateRubyGems |
before 1.8.23, plus listed versions 0.8.100.8.110.8.30.8.40.8.5 Show 45 moreShow less0.8.60.8.80.9.00.9.10.9.20.9.30.9.40.9.51.0.01.0.11.1.01.1.11.2.01.3.01.3.11.3.21.3.31.3.41.3.51.3.61.3.71.4.01.4.11.4.21.5.01.5.21.5.31.6.01.6.11.6.21.7.01.7.11.7.21.8.01.8.11.8.101.8.111.8.121.8.131.8.141.8.151.8.161.8.171.8.181.8.19 |
1.8.23 |
rubygemsRed Hat:openshift:1.2::el6 From an advisory covering 2 CVEs |
before 0:1.8.24-4.el6op | 0:1.8.24-4.el6op |
rubygemsRed Hat:enterprise_linux:6::client From an advisory covering 3 CVEs |
before 0:1.3.7-4.el6_4 | 0:1.3.7-4.el6_4 |
rubygemsRed Hat:enterprise_linux:6::computenode From an advisory covering 3 CVEs |
before 0:1.3.7-4.el6_4 | 0:1.3.7-4.el6_4 |
rubygemsRed Hat:enterprise_linux:6::server From an advisory covering 3 CVEs |
before 0:1.3.7-4.el6_4 | 0:1.3.7-4.el6_4 |
rubygemsRed Hat:enterprise_linux:6::workstation From an advisory covering 3 CVEs |
before 0:1.3.7-4.el6_4 | 0:1.3.7-4.el6_4 |
Show 4 moreShow less
| Package | Affected | Fixed |
|---|---|---|
rubygemsRed Hat:enterprise_mrg:2:computenode:el6 From an advisory covering 7 CVEs |
before 0:1.8.23.2-1.el6 | 0:1.8.23.2-1.el6 |
cuminRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 7 CVEs |
before 0:0.1.5787-4.el6 | 0:0.1.5787-4.el6 |
rubygemsRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 7 CVEs |
before 0:1.8.23.2-1.el6 | 0:1.8.23.2-1.el6 |
jrubyUbuntu:Pro:14.04:LTS |
All versions, plus listed versions 1.5.6-5ubuntu11.5.6-61.5.6-71.5.6-9+deb8u2build0.14.04.1~esm2 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2012-2125 is a medium vulnerability (CVSS 5.8) in Rubygems, published April 20, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.47%, the 84th percentile. Fixed in rubygems-update 1.8.23.
References
secunia.com/advisories/55381
ubuntu.com/usn/USN-1582-1
github.com/rubygems/rubygems/blob/1.8/History.txt
rhn.redhat.com/errata/RHSA-2013-1203.html
bugzilla.redhat.com/show_bug.cgi?id=814718
openwall.com/lists/oss-security/2012/04/20/24
Show 45 moreShow less
nvd.nist.gov/vuln/detail/CVE-2012-2125
security-tracker.debian.org/tracker/CVE-2012-2125
access.redhat.com/errata/RHSA-2013:1203
security.access.redhat.com/data/csaf/v2/advisories/2013/rhsa-2013_1203.json
cve.org/CVERecord?id=CVE-2012-2125
blog.rubygems.org/2013/09/09/CVE-2013-4287.html
ubuntu.com/security/CVE-2012-2125
ruby-lang.org/en/news/2012/04/20/ruby-1-9-3-p194-is-released
Left out here: 11 versions. The JSON record has them.