CVE-2021-34580 Remote user enumeration in mymbCONNECT24, mbCONNECT24 <= 2.9.0
Unauthenticated attackers can enumerate valid backend users by analyzing server responses to invalid login attempts in mbCONNECT24.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-34580?
CVE-2021-34580 is a high-severity vulnerability in mbCONNECT24, published on 27 Oct 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In mymbCONNECT24, mbCONNECT24 <= 2.9.0 an unauthenticated user can enumerate valid backend users by checking what kind of response the server sends for crafted invalid login attempts.
Which versions are affected by CVE-2021-34580?
It affects 2 products.
Products include Mbconnectline Mbconnect24, Mbconnectline Mymbconnect24.
How do I fix CVE-2021-34580?
No fix has been published for CVE-2021-34580 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-34580 being exploited?
There is no known exploitation of CVE-2021-34580 in the wild and no public exploit code.
Other vulnerabilities in mbCONNECT24
- CVE-2020-35565 Security feature bypass in n/a
- CVE-2020-10383 Code injection in n/a
- CVE-2026-33615 MB connect line mbCONNECT24 vulnerable to an unauthenticated SQL injection in the setinfo Endpoint
- CVE-2023-0985 Helmholz and MB Connect Line: Account takeover via password reset in multiple products
- CVE-2020-10382 Code injection in n/a
Sources
Also known as GHSA-v5p4-qxg5-3jh2.