InfoCard Module 1.0 on SimpleSAMLphp XML Message Return Value input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in InfoCard Module 1.0 on SimpleSAMLphp. This vulnerability affects unknown code of the component XML Message Handler. Such manipulation as part of Return Value leads to input validation. This vulnerability is documented as CVE-2017-12874. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in InfoCard Module 1.0 on SimpleSAMLphp. Affected by this issue is an unknown code block of the component XML Message Handler. The manipulation as part of a Return Value leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, and integrity. CVE summarizes:

The InfoCard module 1.0 for SimpleSAMLphp allows attackers to spoof XML messages by leveraging an incorrect check of return values in signature validation utilities.

The bug was discovered 12/03/2016. The weakness was released 09/01/2017 (Website). The advisory is shared for download at simplesamlphp.org. This vulnerability is handled as CVE-2017-12874 since 08/15/2017. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 272 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 105193 (Debian DLA-1205-1 : simplesamlphp 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 176309 (Debian Security Update for simplesamlphp (DSA 4127-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (105193). Entries connected to this vulnerability are available at VDB-105916, VDB-106071, VDB-106075 and VDB-112755. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.8

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 105193
Nessus Name: Debian DLA-1205-1 : simplesamlphp security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802334
OpenVAS Name: Debian Security Advisory DSA 4127-1 (simplesamlphp - 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: 🔍

Timelineinfo

12/03/2016 🔍
08/15/2017 +255 days 🔍
09/01/2017 +17 days 🔍
09/01/2017 +0 days 🔍
09/02/2017 +1 days 🔍
12/12/2017 +101 days 🔍
12/13/2017 +1 days 🔍
12/27/2022 +1840 days 🔍

Sourcesinfo

Advisory: DLA 1205-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-12874 (🔍)
GCVE (CVE): GCVE-0-2017-12874
GCVE (VulDB): GCVE-100-106076

OVAL: 🔍
See also: 🔍

Entryinfo

Created: 09/02/2017 09:48
Updated: 12/27/2022 15:35
Changes: 09/02/2017 09:48 (68), 11/12/2019 16:59 (10), 12/27/2022 15:35 (4)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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