Vulnerability · Published Jul 22, 2024 · Assigned by GitHub_M

CVE-2024-39688fishaudio/Bert-VITS2 Limited File Write in webui_preprocess.py generate_config function

Medium 6.5

In plain English

A medium-severity path traversal in Bert-VITS2 from FishAudio. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.5%top 56.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Bert-VITS2 is the VITS2 Backbone with multilingual bert. User input supplied to the data_dir variable is concatenated with other folders and used to open a new file in the generate_config function, which leads to a limited file write. The issue allows for writing /config/config.json file in arbitrary directory on the server. If a given directory path doesn’t exist, the application will return an error, so this vulnerability could also be used to gain information about existing directories on the server. This affects fishaudio/Bert-VITS2 2.3 and earlier.

Affected products (as reported)

Vendor	Product	Versions
FishAudio	Bert-VITS2	<= 2.3

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

References

https://securitylab.github.com/advisories/GHSL-2024-045_GHSL-2024-047_fishaudio_Bert-VITS2/ x_refsource_CONFIRM
https://github.com/fishaudio/Bert-VITS2/blob/76653b5b6d657143721df2ed6c5c246b4b1d9277/webui_preprocess.py#L130-L133 x_refsource_MISC
https://github.com/fishaudio/Bert-VITS2/blob/76653b5b6d657143721df2ed6c5c246b4b1d9277/webui_preprocess.py#L34 x_refsource_MISC