orbot is an open source tor network intelligence tool. In affected versions the `torbot.modules.validators.validate_link function` uses the python-validators URL validation regex. This particular regular expression has an exponential complexity which allows an attacker to cause an application crash using a well-crafted argument. An attacker can use a well-crafted URL argument to exploit the vulnerability in the regular expression and cause a Denial of Service on the system. The validators file has been removed in version 4.0.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Configuration 1 (hide)
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21 Nov 2024, 08:27
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 4.6 |
| References | () https://github.com/DedSecInside/TorBot/commit/ef6e06bc7785355b1701d5524eb4550441086ac4 - Patch | |
| References | () https://github.com/DedSecInside/TorBot/security/advisories/GHSA-72qw-p7hh-m3ff - Exploit, Vendor Advisory |
Published : 2023-10-18 21:15
Updated : 2024-11-21 08:27
NVD link : CVE-2023-45813
Mitre link : CVE-2023-45813
CVE.ORG link : CVE-2023-45813
JSON object : View
Inefficient Regular Expression Complexity