CVE-2017-16852 Security feature bypass in n/a
The Shibboleth Service Provider fails to verify metadata signatures and validity periods, allowing attackers to bypass critical security checks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-16852?
CVE-2017-16852 is a high-severity vulnerability in Debian Debian Linux, published on 16 Nov 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
shibsp/metadata/DynamicMetadataProvider.cpp in the Dynamic MetadataProvider plugin in Shibboleth Service Provider before 2.6.1 fails to properly configure itself with the MetadataFilter plugins and does not perform critical security checks such as signature verification, enforcement of validity periods, and other checks specific to deployments, aka SSPCPP-763.
Weakness: CWE-347
Which versions are affected by CVE-2017-16852?
It affects 2 products.
Linux distribution packages (7)
shibboleth-sp SUSE:Linux Enterprise Server 12 SP2 | All versions | 2.5.5-6.3.1 |
shibboleth-sp SUSE:Linux Enterprise Server 12 SP3 | All versions | 2.5.5-6.3.1 |
shibboleth-sp SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2 | All versions | 2.5.5-6.3.1 |
shibboleth-sp SUSE:Linux Enterprise Server for SAP Applications 12 SP2 | All versions | 2.5.5-6.3.1 |
shibboleth-sp SUSE:Linux Enterprise Server for SAP Applications 12 SP3 | All versions | 2.5.5-6.3.1 |
shibboleth-sp SUSE:Linux Enterprise Software Development Kit 12 SP2 | All versions | 2.5.5-6.3.1 |
shibboleth-sp SUSE:Linux Enterprise Software Development Kit 12 SP3 | All versions | 2.5.5-6.3.1 |
Products include Debian Debian Linux, Shibboleth Service Provider.
How do I fix CVE-2017-16852?
Upgrade to a fixed version.
Is CVE-2017-16852 being exploited?
There is no known exploitation of CVE-2017-16852 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DLA-1179-1, DSA-4038-1, GHSA-5rhm-55rh-pvvp, SUSE-SU-2017:3215-1, UBUNTU-CVE-2017-16852.