CVE-2021-20109
mediumpriority · track · 30EPSS 0.014 · 72 %ileEURUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (3)
Products and version ranges known to be affected.
- zohocorp manageengine assetexplorer= 1.0.34nvdUScpe:2.3:a:zohocorp:manageengine_assetexplorer:*:*:*:*:*:*:*:*
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (5)
External citations — patches, advisories, analysis.
- https://nvd.nist.gov/vuln/detail/CVE-2021-20109cnnvd
- https://www.cybersecurity-help.cz/vdb/SB2021072109cnnvd
- https://www.tenable.com/security/research/tra-2021-30cnnvd
- https://www.tenable.com/security/research/tra-2021-30enisa_euvd
- https://www.tenable.com/security/research/tra-2021-30Third Party Advisorynvd
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