CVE-2020-11728 Auth bypass in n/a
Attackers can impersonate user sessions by guessing predictable session keys, leading to unauthorized account access in DAViCal AWL.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-11728?
CVE-2020-11728 is a high-severity authentication bypass vulnerability in Debian Debian Linux, published on 15 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in DAViCal Andrew's Web Libraries (AWL) through 0.60. Session management does not use a sufficiently hard-to-guess session key. Anyone who can guess the microsecond time (and the incrementing session_id) can impersonate a session.
Weakness: CWE-384
Which versions are affected by CVE-2020-11728?
It affects 2 products.
Products include Davical Andrew\'s Web Libraries, Debian Debian Linux.
How do I fix CVE-2020-11728?
Apply the vendor's patch.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2020-11728 being exploited?
There is no known exploitation of CVE-2020-11728 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2020-11728, GHSA-gqhq-jmhf-8j84, UBUNTU-CVE-2020-11728, USN-4539-1.