Information disclosure in Drupal shib_auth module



Published: 2017-05-04
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID N/A
CWE-ID CWE-200
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Shibboleth authentication
Web applications / Modules and components for CMS

Vendor Shibboleth

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU6418

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to an error within session management functionality combined with internal caching mechanism. The web application does not properly performs the logout procedure when the shib session expires, which depending on the caching mechanism makes private data public.

A remote attacker can gain access to potentially sensitive information of other website users.

Mitigation

Update to version 7.x-4.4.

Vulnerable software versions

Shibboleth authentication: 7.x-4.0 - 7.x-4.3

External links

http://www.drupal.org/node/2875366


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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