CVE-2019-8320
CVSS V2 High 8.8
CVSS V3 High 7.4
Description
A Directory Traversal issue was discovered in RubyGems 2.7.6 and later through 3.0.2. Before making new directories or touching files (which now include path-checking code for symlinks), it would delete the target destination. If that destination was hidden behind a symlink, a malicious gem could delete arbitrary files on the user's machine, presuming the attacker could guess at paths. Given how frequently gem is run as sudo, and how predictable paths are on modern systems (/tmp, /usr, etc.), this could likely lead to data loss or an unusable system.
Overview
- CVE ID
- CVE-2019-8320
- Assigner
- cve@mitre.org
- Vulnerability Status
- Modified
- Published Version
- 2019-06-06T15:29:01
- Last Modified Date
- 2020-08-16T15:15:13
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:rubygems:rubygems:*:*:*:*:*:*:*:* | 1 | OR | 2.7.6 | 3.0.2 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:N/I:C/A:C
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 8.8
- Severity
- HIGH
- Exploitability Score
- 8.6
- Impact Score
- 9.2
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 7.4
- Base Severity
- HIGH
- Exploitability Score
- 2.2
- Impact Score
- 5.2
References
| Reference URL | Reference Tags |
|---|---|
| https://hackerone.com/reports/317321 | Exploit Third Party Advisory |
| https://blog.rubygems.org/2019/03/05/security-advisories-2019-03.html | Vendor Advisory |
| https://access.redhat.com/errata/RHSA-2019:1429 | |
| http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html | |
| https://lists.debian.org/debian-lts-announce/2020/08/msg00027.html |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-8320 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-8320 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:20:29 | Added to TrackCVE | |||
| 2022-12-03 21:46:53 | 2019-06-06T15:29Z | 2019-06-06T15:29:01 | CVE Published Date | updated |
| 2022-12-03 21:46:53 | 2020-08-16T15:15:13 | CVE Modified Date | updated | |
| 2022-12-03 21:46:53 | Modified | Vulnerability Status | updated |