CVE-2021-20136 Missing authorization in ManageEngine Log360

What is CVE-2021-20136?

CVE-2021-20136 is a critical missing authorization vulnerability in ManageEngine Log360, published on 1 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

ManageEngine Log360 Builds < 5235 are affected by an improper access control vulnerability allowing database configuration overwrite. An unauthenticated remote attacker can send a specially crafted message to Log360 to change its backend database to an attacker-controlled database and to force Log360 to restart. An attacker can leverage this vulnerability to achieve remote code execution by replacing files executed by Log360 on startup.

Weakness: CWE-306

Which versions are affected by CVE-2021-20136?

It affects 1 product.

Products include Zohocorp Manageengine Log360.

How do I fix CVE-2021-20136?

No fix has been published for CVE-2021-20136 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2021-20136 being exploited?

There is no known exploitation of CVE-2021-20136 in the wild and no public exploit code.

Other vulnerabilities in ManageEngine Log360

• CVE-2021-40175 File upload in n/a Critical 9.8
• CVE-2021-40177 File upload in n/a Critical 9.8
• CVE-2021-40172 Cross-site request forgery in n/a High 8.8
• CVE-2021-40174 Cross-site request forgery in n/a High 8.8
• CVE-2026-3324 Authentication Bypass High 8.2

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-3fq5-562h-h369.