CVE-2021-27522 Auth bypass in n/a
Attackers can escalate privileges to administrator by manipulating user cookie keys in the Learnsite web application.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-27522?
CVE-2021-27522 is a high-severity authentication bypass vulnerability in n/a, published on 8 Apr 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Learnsite 1.2.5.0 contains a remote privilege escalation vulnerability in /Manager/index.aspx through the JudgIsAdmin() function. By modifying the initial letter of the key of a user cookie, the key of the administrator cookie can be obtained.
Weakness: CWE-287
Which versions are affected by CVE-2021-27522?
It affects 1 product.
Products include Learnsite Project Learnsite.
How do I fix CVE-2021-27522?
No fix has been published for CVE-2021-27522 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2021-27522 being exploited?
There is no known exploitation of CVE-2021-27522 in the wild and no public exploit code.
Sources
Also known as GHSA-fpr5-99x5-v6hh.