- Reported
-
- Issued
-
- Package
-
cap-primitives
(crates.io)
- Type
-
Vulnerability
- Keywords
-
#path-traversal
- Aliases
-
- References
-
- CVSS Score
- 2.3
LOW
- CVSS Details
-
- Attack Complexity
- Low
- Attack Requirements
- Present
- Attack Vector
- Network
- Privileges Required
- Low
- Availability Impact to the Subsequent System
- None
- Confidentiality Impact to the Subsequent System
- None
- Integrity Impact to the Subsequent System
- None
- User Interaction
- None
- Availability Impact to the Vulnerable System
- Low
- Confidentiality Impact to the Vulnerable System
- Low
- Integrity Impact to the Vulnerable System
- Low
- CVSS Vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
- Patched
-
- Affected OSes
-
Description
Impact
cap-primitives's filesystem sandbox implementation on Windows blocks
access to special device filenames such as "COM1", "COM2",
"LPT0", "LPT1", and so on, however it did not block access
to the special device filenames which use superscript digits,
such as "COM¹", "COM²", "LPT⁰", "LPT¹", and so on. Untrusted
filesystem paths could bypass the sandbox and access devices
through those special device filenames with superscript
digits, and through them provide access peripheral devices
connected to the computer, or network resources mapped to
those devices. This can include modems, printers, network
printers, and any other device connected to a serial or
parallel port, including emulated USB serial ports.
Patches
The bug is fixed in #371, which is published in
cap-primitives 3.4.1, cap-std 3.4.1, and cap-async-std 3.4.1.
Workarounds
There are no known workarounds for this issue.
Affected Windows users are recommended to upgrade.
Advisory available under CC-BY-4.0
license.
Source: https://github.com/bytecodealliance/cap-std/security/advisories/GHSA-hxf5-99xg-86hw