#VU25720 Authorization bypass through user-controlled key in GRANDIT


Published: 2020-03-02

Vulnerability identifier: #VU25720

Vulnerability risk: Low

CVSSv3.1: 3.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-5539

CWE-ID: N/A

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
GRANDIT
Web applications / Other software

Vendor: GRANDIT CORPORATION

Description

The vulnerability allows a local user to gain access to another user's session.

The vulnerability exist due to improper authorization functionality in session management. A remote attacker who can access the product may impersonate an arbitrary user and gain access to sensitive information on the target system.


Mitigation
Install updates from vendor's website.

Vulnerable software versions

GRANDIT: 1.6 - 3.0


External links
http://jvn.jp/en/jp/JVN73472345/index.html
http://www.grandit.jp/etc/20200228_letter.pdf


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.


Latest bulletins with this vulnerability