CVE-2017-0901

high-risk
Published 2017-08-31

RubyGems version 2.6.12 and earlier fails to validate specification names, allowing a maliciously crafted gem to potentially overwrite any file on the filesystem.

Do I need to act?

!
18.6% chance of exploitation in next 30 days
EPSS score — higher than 81% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
!
1 public exploit available
42611
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (16)

Rubygems

Affected Vendors

Redhat Rubygems Debian Canonical

References (30)

Patch http://blog.rubygems.org/2017/08/27/2.6.13-released.html
Third Party Advisory http://www.securityfocus.com/bid/100580
Third Party Advisory http://www.securitytracker.com/id/1039249
Third Party Advisory https://access.redhat.com/errata/RHSA-2017:3485
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:0378
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:0583
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:0585
Patch https://github.com/rubygems/rubygems/commit/ad5c0a53a86ca5b218c7976765c0365b91d2...
Exploit https://hackerone.com/reports/243156
Mailing List https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
Third Party Advisory https://security.gentoo.org/glsa/201710-01
Third Party Advisory https://usn.ubuntu.com/3553-1/
Third Party Advisory https://usn.ubuntu.com/3685-1/
Third Party Advisory https://www.debian.org/security/2017/dsa-3966
Exploit https://www.exploit-db.com/exploits/42611/
Patch http://blog.rubygems.org/2017/08/27/2.6.13-released.html
Third Party Advisory http://www.securityfocus.com/bid/100580
Third Party Advisory http://www.securitytracker.com/id/1039249
Third Party Advisory https://access.redhat.com/errata/RHSA-2017:3485
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:0378
and 10 more references
64
/ 100
high-risk
Severity 26/34 · High
Exploitability 20/34 · Moderate
Exposure 18/34 · Moderate