CVE-2024-35198: TorchServe bypass allowed_urls configuration
Impact TorchServe's check on allowedurls configuration can be by-passed if the URL contains characters such as ".." but it does not prevent the model from being downloaded into the model store. Once a file is downloaded, it can be referenced without providing a URL the second time, which effectively bypasses the allowedurls security check. Customers using PyTorch inference Deep Learning Containers (DLC) through Amazon SageMaker and EKS are not affected.
Patches This issue in TorchServe has been fixed by validating the URL without characters such as ".." before downloading: #3082.
TorchServe release 0.11.0 includes the fix to address this vulnerability.
References #3082 TorchServe release v0.11.0
Thank Kroll Cyber Risk for for responsibly disclosing this issue.
If you have any questions or comments about this advisory, we ask that you contact AWS Security via our vulnerability reporting page or directly via email to aws-security@amazon.com. Please do not create a public GitHub issue.
Other sources
TorchServe is a flexible and easy-to-use tool for serving and scaling PyTorch models in production. TorchServe 's check on allowedurls configuration can be by-passed if the URL contains characters such as ".." but it does not prevent the model from being downloaded into the model store. Once a file is downloaded, it can be referenced without providing a URL the second time, which effectively bypasses the allowedurls security check. Customers using PyTorch inference Deep Learning Containers (DLC) through Amazon SageMaker and EKS are not affected. This issue in TorchServe has been fixed by validating the URL without characters such as ".." before downloading see PR #3082. TorchServe release 0.11.0 includes the fix to address this vulnerability. Users are advised to upgrade. There are no known workarounds for this vulnerability.
— MITRE
Affected Software
Remediation
Patch Available
Event History
Frequently Asked Questions
What is the severity of CVE-2024-35198?
CVE-2024-35198 is classified as a medium severity vulnerability.
How do I fix CVE-2024-35198?
To fix CVE-2024-35198, upgrade to torchserve version 0.11.0 or later.
What specifically does CVE-2024-35198 impact?
CVE-2024-35198 impacts the allowed_urls configuration in TorchServe, allowing bypass for certain URL formats.
Can the vulnerability CVE-2024-35198 lead to unauthorized access?
Yes, CVE-2024-35198 can potentially lead to unauthorized model downloads into the model store.
Is there a specific character that triggers CVE-2024-35198?
Yes, certain characters such as '..' in URLs can bypass checks defined in CVE-2024-35198.