CVE-2020-1755 Security feature bypass in Moodle
Attackers can spoof IP addresses via X-Forwarded-For headers to bypass remote address checks in Moodle.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-1755?
CVE-2020-1755 is a medium-severity vulnerability in Moodle Moodle, published on 16 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Moodle before 3.8.2, 3.7.5, 3.6.9 and 3.5.11, X-Forwarded-For headers could be used to spoof a user's IP, in order to bypass remote address checks.
Weakness: CWE-345
Which versions are affected by CVE-2020-1755?
1 open source package ship an affected version, including moodle. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
moodle Bitnami | From 3.5.0 | 3.5.11, 3.6.9, 3.7.5, 3.8.2 |
Products include Moodle Moodle.
How do I fix CVE-2020-1755?
Upgrade moodle to a fixed version for your release line: 3.5.11, 3.6.9, 3.7.5 or 3.8.2.
Is CVE-2020-1755 being exploited?
There is no known exploitation of CVE-2020-1755 in the wild and no public exploit code.
Other vulnerabilities in Moodle Moodle
- CVE-2006-4935 File upload in n/a
- CVE-2006-4936 Moodle does not properly validate module instance id
- CVE-2004-2233 Unknown "front page vulnerability with Moodle servers" for Moodle before 1.3.2 has unknown impact and attack vectors.
- CVE-2004-2235 Cross-site scripting in n/a
- CVE-2004-2236 Other in n/a
Sources
Also known as BIT-moodle-2020-1755, GHSA-4265-mh49-263h, UBUNTU-CVE-2020-1755.