Authorization bypass through user-controlled key in GRANDIT



Published: 2020-03-02
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-5539
CWE-ID N/A
Exploitation vector Network
Public exploit N/A
Vulnerable software
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GRANDIT
Web applications / Other software

Vendor GRANDIT CORPORATION

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Authorization bypass through user-controlled key

EUVDB-ID: #VU25720

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: -

Exploit availability: No

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


CPE2.3 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.



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