Deserialization in HackerOne Rubygems
CVE-2017-0903
RubyGems versions between 2.0.0 and 2.6.13 are vulnerable to a possible remote code execution vulnerability. YAML deserialization of gem specifications can bypass class white lists. Specially crafted serialized objects can possibly be used to escalate to remote code execution.
Vulnerability class: Insecure Deserialization
EPSS: 0.159 (96.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Hackerone Rubygems — versions Versions >= 2.0.0
- Rubygems — versions 2.0.0, 2.0.1, 2.0.2
- Canonical Ubuntu_linux — versions 14.04, 16.04, 17.10
- Debian Debian_linux — versions 8.0, 9.0
- Redhat Enterprise_linux_desktop — versions 7.0
- Redhat Enterprise_linux_server — versions 7.0
- Redhat Enterprise_linux_server_aus — versions 7.4, 7.6
- Redhat Enterprise_linux_server_eus — versions 7.4, 7.5, 7.6
- Redhat Enterprise_linux_server_tus — versions 7.4, 7.6
- Redhat Enterprise_linux_workstation — versions 7.0
Weakness classification (CWE)
References
- support@hackerone.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- support@hackerone.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- support@hackerone.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- support@hackerone.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- support@hackerone.com (Third Party Advisory, x_refsource_MISC)
- support@hackerone.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- support@hackerone.com (Patch, Third Party Advisory, x_refsource_MISC)
- support@hackerone.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- support@hackerone.com (x_refsource_MISC, Vendor Advisory)
- support@hackerone.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-0903?
- CVE-2017-0903 is a critical-severity vulnerability in HackerOne Rubygems, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2017-10-11.
- How severe is CVE-2017-0903?
- Critical severity. CVSS v3 base score is 9.8 out of 10.