PT-2017-10703 · Ruby+5 · Rubygems+5

Max Justicz · Published 2017-10-11 · Updated 2022-05-13 · CVE-2017-0903

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions RubyGems versions 2.0.0 through 2.6.13

Description The issue concerns a possible remote code execution vulnerability. YAML deserialization of gem specifications can bypass class white lists, allowing specially crafted serialized objects to possibly escalate to remote code execution.

Recommendations For RubyGems versions 2.0.0 through 2.6.13, update to version 2.6.14 to resolve the issue.

Exploit

Fix

RCE

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

ALT-PU-2017-2419

CESA-2018_0378

CVE-2017-0903

DLA-1421-1

DSA-4031-1

GHSA-MQWR-4QF2-2HCV

MGASA-2017-0482

RHSA-2017:3485

RHSA-2018:0378

RHSA-2018:0583

RHSA-2018:0585

RHSA-2018_0378

SUSE-SU-2020:1570-1

SUSE-SU-2020_1570-1

USN-3553-1

USN-3685-1

USN-3685-2

Affected Products

Alt Linux

Centos

Red Hat

Rubygems

Suse

Ubuntu

References · 130

• 🔥 https://github.com/rails-lts/json_cve_2020_10663 · Exploit
• https://github.com/rubygems/rubygems/commit/510b1638ac9bba3ceb7a5d73135dafff9e5bab49 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-0903 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-0903 · Vendor Advisory
• http://blog.rubygems.org/2017/10/09/unsafe-object-deserialization-vulnerability.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-10784 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-1421-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3685-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-0903 · Security Note
• https://ubuntu.com/security/CVE-2017-0898 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2017-0482.html · Security Note
• http://blog.rubygems.org/2017/10/09/2.6.14-released.html · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-0903 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3685-2 · Vendor Advisory
• https://usn.ubuntu.com/3553-1 · Vendor Advisory