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Security Advisories: GSA_kwCzR0hTQS1ycHg3LTMzajIteHg5eM0hRA
Arbitrary file deletion in NeMo ASR webapp
Description
NVIDIA NeMo contains a vulnerability in ASR WebApp, where Relative Path Traversal (CWE-23) may lead to deletion of any directory through the "../" structure when admin privileges are available.
CVSS Score = 2.0
https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
Impact
When the optional tool ASR Webapp (https://github.com/NVIDIA/NeMo/tree/main/tools/asr_webapp) is used prior to commit https://github.com/NVIDIA/NeMo/commit/f7e4ed7e4f7f2fa43765a38c2fafa1b6d1ebd7c0, some interfaces do not verify user input. Malicious attackers can construct malicious requests to delete any directory through the "../" structure.
The vulnerability affects only cases where this particular web app is started by a user with superuser permissions. The web application is not a part of the regular pip release or the corresponding container, and impacts only users that clone the repository in its entirety and execute the web app (while also possessing superuser permissions).
Patches
This vulnerability has been patched via https://github.com/NVIDIA/NeMo/commit/f7e4ed7e4f7f2fa43765a38c2fafa1b6d1ebd7c0, which is effectively any clone of the repository post r1.5.1 branch. Since the web app is not distributed via pip release or container, users who clone the main branch post this commit will possess the patch.
Workarounds
The changes in commit https://github.com/NVIDIA/NeMo/commit/f7e4ed7e4f7f2fa43765a38c2fafa1b6d1ebd7c0 can be applied to any version of the web app without any adverse effect.
Additional Information
Exploit Found on: 2021.12.16
Exploit Found by: @haby0
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1ycHg3LTMzajIteHg5eM0hRA
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Low
Classification: General
Published: over 2 years ago
Updated: over 1 year ago
CVSS Score: 2.0
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
Identifiers: GHSA-rpx7-33j2-xx9x
References:
- https://github.com/NVIDIA/NeMo/security/advisories/GHSA-rpx7-33j2-xx9x
- https://github.com/NVIDIA/NeMo/commit/f7e4ed7e4f7f2fa43765a38c2fafa1b6d1ebd7c0
- https://github.com/advisories/GHSA-rpx7-33j2-xx9x
Blast Radius: 2.9
Affected Packages
pypi:nemo_toolkit
Dependent packages: 4Dependent repositories: 27
Downloads: 85,132 last month
Affected Version Ranges: < 1.6.0
Fixed in: 1.6.0
All affected versions:
All unaffected versions: