CVE-2018-8780
CRITICAL severity · CVSS 9.1 · Path traversal
9.1CVSS CRITICAL
Summary
In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, the Dir.open, Dir.new, Dir.entries and Dir.empty? methods do not check NULL characters. When using the corresponding method, unintentional directory traversal may be performed.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)2%
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
- http://www.securityfocus.com/bid/103739Advisory
- http://www.securitytracker.com/id/1042004Advisory
- https://access.redhat.com/errata/RHSA-2018:3729Advisory
- https://access.redhat.com/errata/RHSA-2018:3730Advisory
- https://access.redhat.com/errata/RHSA-2018:3731Advisory
- https://access.redhat.com/errata/RHSA-2019:2028
- https://access.redhat.com/errata/RHSA-2020:0542