Auth0 passport-wsfed-saml2 up to 3.0.4 SAML Response access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Auth0 passport-wsfed-saml2 up to 3.0.4. It has been declared as problematic. The affected element is an unknown function of the component SAML Response Handler. Executing a manipulation as part of SAML Response can lead to access control. This vulnerability is registered as CVE-2017-16897. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Auth0 passport-wsfed-saml2 up to 3.0.4. It has been declared as critical. This vulnerability affects some unknown processing of the component SAML Response Handler. The manipulation as part of a SAML Response leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A vulnerability has been discovered in the Auth0 passport-wsfed-saml2 library affecting versions < 3.0.5. This vulnerability allows an attacker to impersonate another user and potentially elevate their privileges if the SAML identity provider does not sign the full SAML response (e.g., only signs the assertion within the response).

The bug was discovered 12/22/2017. The weakness was published 12/27/2017 (Website). The advisory is shared for download at auth0.com. This vulnerability was named CVE-2017-16897 since 11/20/2017. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 3.0.5 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
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: Access control
CWE: CWE-264
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: passport-wsfed-saml2 3.0.5

Timelineinfo

11/20/2017 🔍
12/22/2017 +32 days 🔍
12/27/2017 +5 days 🔍
12/27/2017 +0 days 🔍
12/28/2017 +1 days 🔍
12/18/2019 +720 days 🔍

Sourcesinfo

Advisory: auth0.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-16897 (🔍)
GCVE (CVE): GCVE-0-2017-16897
GCVE (VulDB): GCVE-100-111040

Entryinfo

Created: 12/28/2017 09:34
Updated: 12/18/2019 08:15
Changes: 12/28/2017 09:34 (60), 12/18/2019 08:15 (2)
Complete: 🔍
Cache ID: 216::103

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