CVE-2019-10842
CVSS V2 High 10
CVSS V3 Critical 9.8
Description
Arbitrary code execution (via backdoor code) was discovered in bootstrap-sass 3.2.0.3, when downloaded from rubygems.org. An unauthenticated attacker can craft the ___cfduid cookie value with base64 arbitrary code to be executed via eval(), which can be leveraged to execute arbitrary code on the target system. Note that there are three underscore characters in the cookie name. This is unrelated to the __cfduid cookie that is legitimately used by Cloudflare.
Overview
- CVE ID
- CVE-2019-10842
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2019-04-04T04:29:00
- Last Modified Date
- 2019-04-11T18:39:17
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:getbootstrap:bootstrap-sass:3.2.0.3:*:*:*:*:ruby:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:C/I:C/A:C
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 10
- Severity
- HIGH
- Exploitability Score
- 10
- Impact Score
- 10
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 9.8
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://snyk.io/vuln/SNYK-RUBY-BOOTSTRAPSASS-174093 | Exploit Third Party Advisory |
| https://snyk.io/blog/malicious-remote-code-execution-backdoor-discovered-in-the-popular-bootstrap-sass-ruby-gem/ | Exploit Third Party Advisory |
| https://github.com/twbs/bootstrap-sass/issues/1195 | Issue Tracking Third Party Advisory |
| http://dgb.github.io/2019/04/05/bootstrap-sass-backdoor.html | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-10842 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-10842 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:44:05 | Added to TrackCVE | |||
| 2022-12-03 19:08:25 | 2019-04-04T04:29Z | 2019-04-04T04:29:00 | CVE Published Date | updated |
| 2022-12-03 19:08:25 | 2019-04-11T18:39:17 | CVE Modified Date | updated | |
| 2022-12-03 19:08:25 | Analyzed | Vulnerability Status | updated |