CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.7	$0-$5k	0.00

A vulnerability was found in Shibboleth Service Provider up to 2.6.0. It has been rated as critical. This issue affects an unknown functionality of the file shibsp/metadata/DynamicMetadataProvider.cpp of the component Dynamic MetadataProvider Plugi. The manipulation with an unknown input leads to a signature verification vulnerability. Using CWE to declare the problem leads to CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The bug was discovered 11/15/2017. The weakness was published 11/16/2017 (Website). The advisory is shared at bugs.debian.org. The identification of this vulnerability is CVE-2017-16852 since 11/16/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 104682 (Debian DLA-1179-1 : shibboleth-sp2 security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170595 (OpenSUSE Security Update for shibboleth-sp (openSUSE-SU-2017:3229-1)).

Upgrading to version 2.6.1 eliminates this vulnerability. A possible mitigation has been published 2 days after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (104682) and SecurityTracker (ID 1039808†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• Shibboleth

Name

• Service Provider

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6.0

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Signature verification
CWE: CWE-347 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 104682
Nessus Name: Debian DLA-1179-1 : shibboleth-sp2 security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 59642
OpenVAS Name: Debian Security Advisory DSA 4038-1 (shibboleth-sp2 - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Service Provider 2.6.1
Patch: b66cceb0e992c351ad5e2c665229ede82f261b16

Timelineinfo

11/15/2017 🔍
11/15/2017 +0 days 🔍
11/16/2017 +1 days 🔍
11/16/2017 +0 days 🔍
11/16/2017 +0 days 🔍
11/17/2017 +1 days 🔍
11/18/2017 +1 days 🔍
11/20/2017 +2 days 🔍
01/10/2023 +1877 days 🔍

Sourcesinfo

Advisory: DLA 1179-1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-16852 (🔍)
GCVE (CVE): GCVE-0-2017-16852
GCVE (VulDB): GCVE-100-109565

OVAL: 🔍

SecurityTracker: 1039808

Entryinfo

Created: 11/17/2017 09:39 AM
Updated: 01/10/2023 03:00 PM
Changes: 11/17/2017 09:39 AM (80), 12/09/2019 08:19 AM (2), 01/10/2023 03:00 PM (6)
Complete: 🔍
Cache ID: 18:39C:40

Discussion

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