CVE-2021-20109
HIGHManageEngine AssetExplorer - Heap Overflow via Unvalidated HTTPS Certificate
Title source: llmDescription
Due to the Asset Explorer agent not validating HTTPS certificates, an attacker on the network can statically configure their IP address to match the Asset Explorer's Server IP address. This will allow an attacker to send a NEWSCAN request to a listening agent on the network as well as receive the agent's HTTP request verifying its authtoken. In AEAgent.cpp, the agent responding back over HTTP is vulnerable to a Heap Overflow if the POST payload response is too large. The POST payload response is converted to Unicode using vswprintf. This is written to a buffer only 0x2000 bytes big. If POST payload is larger, then heap overflow will occur.
References (1)
Core 1
Core References
Third Party Advisory x_refsource_misc
https://www.tenable.com/security/research/tra-2021-30
Scores
CVSS v3
7.5
EPSS
0.0252
EPSS Percentile
85.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Details
CWE
CWE-787
Status
published
Products (1)
zohocorp/manageengine_assetexplorer
1.0.34
Published
Jul 19, 2021
Tracked Since
Feb 18, 2026