Pivotal Concourse up to 5.x Login Flow redirect

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Pivotal Concourse up to 5.x. It has been rated as problematic. The impacted element is an unknown function of the component Login Flow. This manipulation causes redirect. The identification of this vulnerability is CVE-2020-5409. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Pivotal Concourse up to 5.x. It has been declared as critical. Affected by this vulnerability is an unknown function of the component Login Flow. The manipulation with an unknown input leads to a redirect vulnerability. The CWE definition for the vulnerability is CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Pivotal Concourse, most versions prior to 6.0.0, allows redirects to untrusted websites in its login flow. A remote unauthenticated attacker could convince a user to click on a link using the OAuth redirect link with an untrusted website and gain access to that user's access token in Concourse. (This issue is similar to, but distinct from, CVE-2018-15798.)

The weakness was shared 05/14/2020 (Website). It is possible to read the advisory at tanzu.vmware.com. This vulnerability is known as CVE-2020-5409 since 01/03/2020. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1204.001 according to MITRE ATT&CK.

Upgrading to version 6.0.0 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

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

NVD Base Score: 7.6
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Redirect
CWE: CWE-601
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: Concourse 6.0.0

Timelineinfo

01/03/2020 🔍
05/14/2020 +132 days 🔍
05/14/2020 +0 days 🔍
10/18/2020 +157 days 🔍

Sourcesinfo

Vendor: pivotal.io

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

CVE: CVE-2020-5409 (🔍)
GCVE (CVE): GCVE-0-2020-5409
GCVE (VulDB): GCVE-100-155239

Entryinfo

Created: 05/14/2020 16:07
Updated: 10/18/2020 08:19
Changes: 05/14/2020 16:07 (40), 05/14/2020 16:12 (11), 10/18/2020 08:14 (1), 10/18/2020 08:19 (1)
Complete: 🔍
Cache ID: 216::103

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