Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2020-28168 |
CWE-ID | CWE-918 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
BigBlueButton Web applications / Modules and components for CMS |
Vendor | Blindside Networks |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU49251
Risk: Medium
CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-28168
CWE-ID:
CWE-918 - Server-Side Request Forgery (SSRF)
Exploit availability: No
DescriptionThe disclosed vulnerability allows a remote attacker to perform SSRF attacks.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker is able to bypass a proxy by providing a URL that responds with a redirect to a restricted host or IP address and trick the application to initiate requests to arbitrary systems.
Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.
MitigationInstall update from vendor's website.
BigBlueButton: 2.2.0 - 2.2.31
External linkshttp://github.com/bigbluebutton/bigbluebutton/releases/tag/v2.2.32
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.