CVE-2019-12887 LinOTP replay vulnerability with auto resynchronization enabled for TOTP token
Attackers can bypass authentication controls in LinOTP, potentially gaining unauthorized access to the system.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-12887?
CVE-2019-12887 is a high-severity authentication bypass vulnerability in n/a, published on 27 Jun 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
KeyIdentity LinOTP before 2.10.5.3 has Incorrect Access Control (issue 1 of 2).
Weakness: CWE-294
Which versions are affected by CVE-2019-12887?
3 open source packages ship an affected version, including linotp and LinOTP. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
linotp PyPI | All versions | 2.11.1 |
linotp PyPI | All versions | 2.11.1 |
LinOTP PyPI | All versions | 2.11.1 |
Products include Keyidentity Linotp.
How do I fix CVE-2019-12887?
Upgrade linotp to 2.11.1 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2019-12887 being exploited?
There is no known exploitation of CVE-2019-12887 in the wild and no public exploit code.
Sources
Also known as CVE-2019-12888, GHSA-rqg8-xjp2-pg9w, PYSEC-2019-103.