CVE-2024-51998
published 2024-11-08CVE-2024-51998: changedetection.io is a free open source web page change detection tool. The validation for the file URI scheme falls short, and results in an attacker being…
PriorityP349high8.6CVSS 3.1
AVNACLPRNUINSCCHINAN
EPSS
0.70%
48.4th percentile
changedetection.io is a free open source web page change detection tool. The validation for the file URI scheme falls short, and results in an attacker being able to read any file on the system. This issue only affects instances with a webdriver enabled, and `ALLOW_FILE_URI` false or not defined. The check used for URL protocol, `is_safe_url`, allows `file:` as a URL scheme. It later checks if local files are permitted, but one of the preconditions for the check is that the URL starts with `file://`. The issue comes with the fact that the file URI scheme is not required to have double slashes. This issue has been addressed in version 0.47.06 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| dgtlmoon | changedetection.io | < 0.47.06 | 0.47.06 |
| dgtlmoon | changedetection.io | >= 0 < 0.47.6 | 0.47.6 |
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OSV
changedetection.io path traversal using file URI scheme without supplying hostname
osv·2024-11-07
CVE-2024-51998 [HIGH] changedetection.io path traversal using file URI scheme without supplying hostname
changedetection.io path traversal using file URI scheme without supplying hostname
### Summary
The validation for the file URI scheme falls short, and results in an attacker being able to read any file on the system. This issue only affects instances with a webdriver enabled, and `ALLOW_FILE_URI` false or not defined.
### Details
The check used for URL protocol, `is_safe_url`, allows `file:` as a URL scheme:
https://github.com/dgtlmoon/changedetection.io/blob/e0abf0b50507a8a3d0c1d8522ab23519b3e4cdf4/changedetectionio/model/Watch.py#L11-L13
It later checks if local files are permitted, but one of the preconditions for the check is that the URL starts with `file://`. The issue comes with the fact that the file URI scheme is not required to have double slashes.
> A valid file URI must
GHSA
changedetection.io path traversal using file URI scheme without supplying hostname
ghsa·2024-11-07
CVE-2024-51998 [HIGH] CWE-22 changedetection.io path traversal using file URI scheme without supplying hostname
changedetection.io path traversal using file URI scheme without supplying hostname
### Summary
The validation for the file URI scheme falls short, and results in an attacker being able to read any file on the system. This issue only affects instances with a webdriver enabled, and `ALLOW_FILE_URI` false or not defined.
### Details
The check used for URL protocol, `is_safe_url`, allows `file:` as a URL scheme:
https://github.com/dgtlmoon/changedetection.io/blob/e0abf0b50507a8a3d0c1d8522ab23519b3e4cdf4/changedetectionio/model/Watch.py#L11-L13
It later checks if local files are permitted, but one of the preconditions for the check is that the URL starts with `file://`. The issue comes with the fact that the file URI scheme is not required to have double slashes.
> A valid file URI must
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/dgtlmoon/changedetection.io/blob/e0abf0b50507a8a3d0c1d8522ab23519b3e4cdf4/changedetectionio/model/Watch.py#L11-L13https://github.com/dgtlmoon/changedetection.io/commit/49bc982c697169c98b79698889fb9d26f6b3317fhttps://github.com/dgtlmoon/changedetection.io/security/advisories/GHSA-6jrf-rcjf-245r
2024-11-08
Published