Authorization bypass through user-controlled key in GRANDIT
| 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 Subscribe |
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: N/A
Exploit availability: No
DescriptionThe 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.
Install updates from vendor's website.
Vulnerable software versionsGRANDIT: 1.6 - 3.0
External linkshttp://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.
