DNS Hijacking Vulnerability in RubyGems from Ruby
CVE-2017-0902

8.1HIGH

Key Information:

Vendor

Hackerone

Status
Rubygems
Vendor
CVE Published:
27 August 2017

What is CVE-2017-0902?

RubyGems versions up to 2.6.12 are susceptible to a DNS hijacking vulnerability that permits a man-in-the-middle (MITM) attacker to redirect the RubyGems client. This flaw enables attackers to force the application to download and install gems from a compromised server instead of the legitimate RubyGems repository, posing a significant risk of delivering malicious code to end-users.

Affected Version(s)

RubyGems Versions before 2.6.13

References

https://usn.ubuntu.com/3685-1/
vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3553-1/
vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2018:0585
vendor-advisoryx_refsource_REDHAT

EPSS Score

6% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.