IBM SAML-based Single Sign-On XML Parser improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in IBM SAML-based Single Sign-On and Tivoli Federated Identity Manager. This affects an unknown part of the component XML Parser. Executing a manipulation can lead to improper authentication. This vulnerability is handled as CVE-2018-1443. It is possible to launch the attack on the local host. There is not any exploit available.

Detailsinfo

A vulnerability was found in IBM SAML-based Single Sign-On and Tivoli Federated Identity Manager (Directory Service Software) (version unknown). It has been declared as critical. This vulnerability affects an unknown function of the component XML Parser. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An XML parsing vulnerability affects IBM SAML-based single sign-on (SSO) systems (IBM Security Access Manager 9.0.0 - 9.0.4 and IBM Tivoli Federated Identity Manager 6.2 - 6.0.2.) This vulnerability can allow an attacker with authenticated access to trick SAML systems into authenticating as a different user without knowledge of the victim users password. IBM X-Force ID: 139754.

The bug was discovered 03/02/2018. The weakness was released 03/08/2018 (Website). The advisory is available at exchange.xforce.ibmcloud.com. This vulnerability was named CVE-2018-1443 since 12/13/2017. Local access is required to approach this attack. The successful exploitation requires a single authentication. The technical details are unknown and an exploit is not available.

The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 103365†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CNA Base Score: 5.9
CNA Vector (IBM Corporation): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/13/2017 🔍
03/02/2018 +79 days 🔍
03/02/2018 +0 days 🔍
03/08/2018 +6 days 🔍
03/08/2018 +0 days 🔍
03/09/2018 +1 days 🔍
02/17/2023 +1806 days 🔍

Sourcesinfo

Vendor: ibm.com

Advisory: exchange.xforce.ibmcloud.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-1443 (🔍)
GCVE (CVE): GCVE-0-2018-1443
GCVE (VulDB): GCVE-100-114226
X-Force: 139754
SecurityFocus: 103365 - Multiple IBM Products CVE-2018-1443 Authentication Bypass Vulnerability
SecurityTracker: 1040454

Entryinfo

Created: 03/09/2018 07:59
Updated: 02/17/2023 14:27
Changes: 03/09/2018 07:59 (61), 01/11/2020 15:26 (3), 02/17/2023 14:23 (4), 02/17/2023 14:27 (13)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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