5.3

CVSS Score

3.1

Basic Information

CVE ID

CVE-2023-48299

GHSA ID

GHSA-m2mj-pr4f-h9jp

EPSS Score

0.68158%

CWE

CWE-22

Published

11/21/2023

Updated

11/21/2023

KEV Status

Technology

Python

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CVE-2023-48299

CVE-2023-48299: TorchServe ZipSlip

Impact

Using the model/workflow management API, there is a chance of uploading potentially harmful archives that contain files that are extracted to any location on the filesystem that is within the process permissions. Leveraging this issue could aid third-party actors in hiding harmful code in open-source/public models, which can be downloaded from the internet, and take advantage of machines running Torchserve.

Patches

The ZipSlip issue in TorchServe has been fixed by validating the paths of files contained within a zip archive before extracting them: https://github.com/pytorch/serve/pull/2634

TorchServe release 0.9.0 includes fixes to address the ZipSlip vulnerability: https://github.com/pytorch/serve/releases/tag/v0.9.0

References

https://github.com/pytorch/serve/pull/2634 https://github.com/pytorch/serve/releases/tag/v0.9.0

Credit

We would like to thank Oligo Security 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.

(GitHub Advisory)

5.3

CVSS Score

3.1

Basic Information

CVE ID

CVE-2023-48299

GHSA ID

GHSA-m2mj-pr4f-h9jp

EPSS Score

0.68158%

CWE

CWE-22

Published

11/21/2023

Updated

11/21/2023

KEV Status

Technology

Python

Technical Details

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
torchserve	pip	>= 0.1.0, < 0.9.0	0.9.0

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability stems from missing path validation in archive extraction functions. The commit diff shows both unzip() and decompressTarGzipFile() were patched with canonical path checks to prevent ZipSlip. The pre-patch code: 1) Used zip/tar entry names directly to create File objects 2) Lacked the canonical path comparison that ensures extracted files remain within the target directory 3) Matches the CWE-22 pattern of improper path limitation. The functions' direct handling of archive entries without validation makes them clearly vulnerable.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

WAF Protection Rules

WAF Rule

### Imp**t Usin* t** mo**l/work*low m*n***m*nt *PI, t**r* is * ***n** o* uplo**in* pot*nti*lly **rm*ul *r**iv*s t**t *ont*in *il*s t**t *r* *xtr**t** to *ny lo**tion on t** *il*syst*m t**t is wit*in t** pro**ss p*rmissions. L*v*r**in* t*is issu* *oul

Reasoning

T** vuln*r**ility st*ms *rom missin* p*t* v*li**tion in *r**iv* *xtr**tion *un*tions. T** *ommit *i** s*ows *ot* `unzip()` *n* `***ompr*ssT*r*zip*il*()` w*r* p*t**** wit* **noni**l p*t* ****ks to pr*v*nt ZipSlip. T** pr*-p*t** *o**: *) Us** zip/t*r *

5.3

Basic Information

Concerned about an active attack path?

CVE-2023-48299: TorchServe ZipSlip

Impact

Patches

References

Credit

5.3

Basic Information

Technical Details

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

WAF Protection Rules

WAF Rule

Reasoning

Vulnerability Intelligence
Miggo AI