VulnerabilityModified
CVE-2020-15692
An attacker can pass one argument to the underlying open command to execute arbitrary registered system commands.
CRITICAL 9.8EPSS 4.21%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In Nim 1.2.4, the standard library browsers mishandles the URL argument to browsers.openDefaultBrowser. This argument can be a local file path that will be opened in the default explorer. An attacker can pass one argument to the underlying open command to execute arbitrary registered system commands.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 4.21% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-88
- Affected
- nim-lang/nim
- Source
- cve@mitre.org
References
- http://www.openwall.com/lists/oss-security/2021/02/04/1Exploit, Mailing List, Third Party Advisory
- https://consensys.net/diligence/vulnerabilities/nim-browsers-argument-injection/Exploit, Third Party Advisory
- https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/browsers.nim#L48Patch, Third Party Advisory
- https://nim-lang.org/blog/2020/07/30/versions-126-and-108-released.htmlRelease Notes, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2021/02/04/1Exploit, Mailing List, Third Party Advisory
- https://consensys.net/diligence/vulnerabilities/nim-browsers-argument-injection/Exploit, Third Party Advisory
- https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/browsers.nim#L48Patch, Third Party Advisory
- https://nim-lang.org/blog/2020/07/30/versions-126-and-108-released.htmlRelease Notes, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.