Spring Security up to 5.2.3/5.3.1 Signature SAML Response signature verification

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Spring Security up to 5.2.3/5.3.1. The impacted element is an unknown function of the component Signature Handler. Such manipulation as part of SAML Response leads to signature verification. This vulnerability is listed as CVE-2020-5407. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Spring Security up to 5.2.3/5.3.1 and classified as critical. Affected by this issue is an unknown part of the component Signature Handler. The manipulation as part of a SAML Response 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. CVE summarizes:

Spring Security versions 5.2.x prior to 5.2.4 and 5.3.x prior to 5.3.2 contain a signature wrapping vulnerability during SAML response validation. When using the spring-security-saml2-service-provider component, a malicious user can carefully modify an otherwise valid SAML response and append an arbitrary assertion that Spring Security will accept as valid.

The weakness was presented 05/13/2020 (Website). The advisory is shared for download at tanzu.vmware.com. This vulnerability is handled as CVE-2020-5407 since 01/03/2020. The exploitation is known to be easy. The attack may be launched remotely. A simple authentication is necessary for exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 5.2.4 or 5.3.2 eliminates this vulnerability.

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Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
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: Signature verification
CWE: CWE-347 / CWE-345
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: Spring Security 5.2.4/5.3.2

Timelineinfo

01/03/2020 🔍
05/13/2020 +131 days 🔍
05/14/2020 +1 days 🔍
10/18/2020 +157 days 🔍

Sourcesinfo

Advisory: tanzu.vmware.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-5407 (🔍)
GCVE (CVE): GCVE-0-2020-5407
GCVE (VulDB): GCVE-100-155228

Entryinfo

Created: 05/14/2020 09:13
Updated: 10/18/2020 07:13
Changes: 05/14/2020 09:13 (39), 05/14/2020 09:18 (17), 10/18/2020 07:13 (1)
Complete: 🔍
Cache ID: 216::103

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