CVE-2018-1000165 LightSAML Incorrect Access Control vulnerability
Attackers can impersonate any user from the Identity Provider due to incorrect signature validation in the LightSAML library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-1000165?
CVE-2018-1000165 is a high-severity authentication bypass vulnerability in n/a, published on 18 Apr 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
LightSAML version prior to 1.3.5 contains a Incorrect Access Control vulnerability in signature validation in readers in src/LightSaml/Model/XmlDSig/ that can result in impersonation of any user from Identity Provider. This vulnerability appears to have been fixed in 1.3.5 and later.
Weakness: CWE-732
Which versions are affected by CVE-2018-1000165?
2 open source packages ship an affected version, including lightsaml/lightsaml. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
lightsaml/lightsaml Packagist | All versions | 1.3.5 |
lightsaml/lightsaml Packagist | All versions | 1.3.5 |
Products include Lightsaml Lightsaml.
How do I fix CVE-2018-1000165?
Upgrade lightsaml/lightsaml to 1.3.5 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2018-1000165 being exploited?
There is no known exploitation of CVE-2018-1000165 in the wild and no public exploit code.
Sources
Also known as GHSA-vg4f-8v9q-5c3x.