CVE-2017-0902

Advisory lineage Upstream: 0 Downstream: 13
Modified
Published: 31 Aug 2017, 20:00
Last modified:17 Sept 2024, 00:42

Vulnerability Summary

Overall Risk (default)
medium
43/100
CVSS Score
8.1 HIGH
v3.0 (nvd)
EPSS Score
5% LOW
5% probability -0.21%
KEV
Not listed
Ransomware
No reports
Public exploits
2 found
Dark Web
Not detected

Timeline

31 Aug 2017, 20:00
Published
Vulnerability first disclosed
17 Sept 2024, 00:42
Last Modified
Vulnerability information updated

Description

RubyGems version 2.6.12 and earlier is vulnerable to a DNS hijacking vulnerability that allows a MITM attacker to force the RubyGems client to download and install gems from a server that the attacker controls.

CVSS Metrics

  • v3.0•HIGH•Score: 8.1CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 6.8AV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 5.00%• Percentile: 90%

Techniques & Countermeasures

  • CWE-350•Reliance on Reverse DNS Resolution for a Security-Critical Action

    The product performs reverse DNS resolution on an IP address to obtain the hostname and make a security decision, but it does not properly ensure that the IP address is truly associated with the hostname.

  • CWE-346•Origin Validation Error

    The product does not properly verify that the source of data or communication is valid.

Affected Systems

  • canonical•ubuntu_linux

    14.04 | 16.04 | 17.10

  • debian•debian_linux

    8.0 | 9.0

  • hackerone•rubygems

    Versions before 2.6.13

  • redhat•enterprise_linux_desktop

    7.0

  • redhat•enterprise_linux_server

    7.0

  • redhat•enterprise_linux_server_aus

    7.4 | 7.6

  • redhat•enterprise_linux_server_eus

    7.4 | 7.5 | 7.6

  • redhat•enterprise_linux_server_tus

    7.4 | 7.6

  • redhat•enterprise_linux_workstation

    7.0

  • rubygems•rubygems

    ≤ 2.6.12

References (14)