Bug 1872642 (CVE-2020-15692) - CVE-2020-15692 nim: mishandling the URL argument to browsers.openDefaultBrowser could lead to arbitrary command execution
Summary: CVE-2020-15692 nim: mishandling the URL argument to browsers.openDefaultBrows...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2020-15692
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1872643
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-08-26 09:35 UTC by Marian Rehak
Modified: 2020-08-26 13:17 UTC (History)
1 user (show)

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Last Closed: 2020-08-26 13:17:35 UTC

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Description Marian Rehak 2020-08-26 09:35:20 UTC 
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.

Upstream patch:

https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/browsers.nim#L48
Comment 1 Marian Rehak 2020-08-26 09:35:47 UTC 
Created nim tracking bugs for this issue:

Affects: fedora-all [bug 1872643]
Comment 2 Product Security DevOps Team 2020-08-26 13:17:35 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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