CVE-2012-4522

Home/CVE/The rb_get_path_check function in file.c in Ruby 1.9.3 before patchlevel 286 and Ruby 2.0.0 before r37163 allows context

CVE

The rb_get_path_check function in file.c in Ruby 1.9.3 before patchlevel 286 and Ruby 2.0.0 before r37163 allows context

The rb_get_path_check function in file.c in Ruby 1.9.3 before patchlevel 286 and Ruby 2.0.0 before r37163 allows context-dependent attackers to create files in unexpected locations or with unexpected names via a NUL byte in a file path.

MEDIUM · CVSS 5 EPSS 0.00316

Monitor

No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence

Sigma rules3 YARA rules0

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Affected Products & Versions

ruby-lang rubyall versions

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Sigma Hunt Rules

Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.

productmediumRuby on Rails Framework Exceptions

productmediumPotential Ruby Reverse Shell

productmediumRuby Inline Command Execution

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Scoring & Timeline

MEDIUM · CVSS v2 (legacy) · secalert@redhat.com

View on NVD

This CVE predates CVSS v3; the legacy v2 score is shown so triage still has a severity to work with.

v2 Vector

AV:N/AC:L/Au:N/C:N/I:P/A:N

Published to NVD24 Nov 2012 · 08:55 PM

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Vendor Advisories

rhsaRHSA-2013:0582Moderate
usnUSN-1614-1
rhsaRHSA-2013:0129Moderate

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References & Sources

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090235.html

http://lists.fedoraproject.org/pipermail/package-announce/2012-October/090515.html

http://rhn.redhat.com/errata/RHSA-2013-0129.html

http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=37163

http://www.openwall.com/lists/oss-security/2012/10/12/6

http://www.openwall.com/lists/oss-security/2012/10/13/1

Show all 8 references

http://www.openwall.com/lists/oss-security/2012/10/16/1

http://www.ruby-lang.org/en/news/2012/10/12/poisoned-NUL-byte-vulnerability/

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