CVE-2023-43654

high-risk
Published 2023-09-28

TorchServe is a tool for serving and scaling PyTorch models in production. TorchServe default configuration lacks proper input validation, enabling third parties to invoke remote HTTP download requests and write files to the disk. This issue could be taken advantage of to compromise the integrity of the system and sensitive data. This issue is present in versions 0.1.0 to 0.8.1. A user is able to load the model of their choice from any URL that they would like to use. The user of TorchServe is responsible for configuring both the allowed_urls and specifying the model URL to be used. A pull request to warn the user when the default value for allowed_urls is used has been merged in PR #2534. TorchServe release 0.8.2 includes this change. Users are advised to upgrade. There are no known workarounds for this issue.

Do I need to act?

!
91.7% chance of exploitation in next 30 days
EPSS score — higher than 8% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
+
Fix available
Upgrade to: 04e0b37dafbd9f98a60d040bbc36f64016fc2c8d
10
CVSS 10.0/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Torchserve

Affected Vendors

Pytorch

References (8)

Exploit http://packetstormsecurity.com/files/175095/PyTorch-Model-Server-Registration-De...
Issue Tracking https://github.com/pytorch/serve/pull/2534
Release Notes https://github.com/pytorch/serve/releases/tag/v0.8.2
Vendor Advisory https://github.com/pytorch/serve/security/advisories/GHSA-8fxr-qfr9-p34w
Exploit http://packetstormsecurity.com/files/175095/PyTorch-Model-Server-Registration-De...
Issue Tracking https://github.com/pytorch/serve/pull/2534
Release Notes https://github.com/pytorch/serve/releases/tag/v0.8.2
Vendor Advisory https://github.com/pytorch/serve/security/advisories/GHSA-8fxr-qfr9-p34w
58
/ 100
high-risk
Severity 33/34 · Critical
Exploitability 20/34 · Moderate
Exposure 5/34 · Minimal