CVE-2023-45813

Inefficient Regular Expression Complexity in TorBot

Published Oct 18, 2023 CVSS 3.1 · 4.6 Medium EPSS < 1% KEV · Not listed
Description
Torbot 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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-2681 Torbot 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.
Github GHSA Github GHSA GHSA-72qw-p7hh-m3ff TorBot vulnerable to Inefficient Regular Expression Complexity in validate_link
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Sep 13, 2024, 2:39 PM
Reserved
Oct 13, 2023, 12:00 PM
Status
Modified
Published
Oct 18, 2023, 9:15 PM
Modified
Jun 17, 2026, 6:29 AM