Products
Wasmer
- 4.3.2 and below
Source
security-advisories@github.com
Tags
CVE-2024-38358 details
Last Modified : June 19, 2024, 8:15 p.m.
Description
Wasmer is a web assembly (wasm) Runtime supporting WASIX, WASI and Emscripten. If the preopened directory has a symlink pointing outside, WASI programs can traverse the symlink and access host filesystem if the caller sets both `oflags::creat` and `rights::fd_write`. Programs can also crash the runtime by creating a symlink pointing outside with `path_symlink` and `path_open`ing the link. This issue has been addressed in commit `b9483d022` which has been included in release version 4.3.2. Users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS Score
| 1 | 2.9 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|
Weakness
| Weakness | Name | Description |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. |
CVSS Data
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Base Score
2.9
Exploitability Score
1.4
Impact Score
1.4
Base Severity
LOW
Vector String : CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
References
| URL | Source |
|---|---|
| https://github.com/wasmerio/wasmer/commit/b9483d022c602b994103f78ecfe46f017f8ac662 | security-advisories@github.com |
| https://github.com/wasmerio/wasmer/security/advisories/GHSA-55f3-3qvg-8pv5 | security-advisories@github.com |