Vulnerability identifier: #VU54712
Vulnerability risk: Low
CVSSv3.1: 7 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-264
Exploitation vector: Local network
Exploit availability: No
Vulnerable software:
Microsoft Exchange Server
Server applications /
Mail servers
Vendor: Microsoft
Description
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions in the Microsoft Exchange Server. A remote authenticated attacker on the local network can gain elevated privileges on the target system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Microsoft Exchange Server: 2013 Cumulative Update 23 15.00.1497.002, 2016 Cumulative Update 21 15.01.2308.008, 2019 Cumulative Update 10 15.02.0922.007
External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34470
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.