CVE-2020-15251 Privilege Escalation in Channelmgnt plug-in for Sopel
Malicious users can bypass ACLs to gain operator or voice status and take over IRC channels in the Sopel Channelmgnt plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-15251?
CVE-2020-15251 is a high-severity missing authorization vulnerability in MirahezeBots sopel-channelmgnt, published on 13 Oct 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In the Channelmgnt plug-in for Sopel (a Python IRC bot) before version 1.0.3, malicious users are able to op/voice and take over a channel. This is an ACL bypass vulnerability. This plugin is bundled with MirahezeBot-Plugins with versions from 9.0.0 and less than 9.0.2 affected. Version 9.0.2 includes 1.0.3 of channelmgnt, and thus is safe from this vulnerability. See referenced GHSA-23pc-4339-95vg.
Which versions are affected by CVE-2020-15251?
4 open source packages ship an affected version, including sopel-plugins-channelmgnt and sopel_plugins.channelmgnt. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
sopel-plugins-channelmgnt PyPI | All versions | 1.0.3 |
sopel-plugins-channelmgnt PyPI | All versions | 1.0.3 |
sopel-plugins-channelmgnt PyPI | All versions | 1.0.3 |
sopel_plugins.channelmgnt PyPI | All versions | 1.0.3 |
Products include Mirahezebots Channelmgnt.
How do I fix CVE-2020-15251?
Upgrade sopel-plugins-channelmgnt to 1.0.3 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2020-15251 being exploited?
There is no known exploitation of CVE-2020-15251 in the wild and no public exploit code.
Other vulnerabilities in MirahezeBots sopel-channelmgnt
Sources
Also known as GHSA-23pc-4339-95vg, GHSA-j257-jfvv-h3x5, PYSEC-2020-110, UBUNTU-CVE-2020-15251.