CVE-2021-31520

Description

A weak session token authentication bypass vulnerability in Trend Micro IM Security 1.6 and 1.6.5 could allow an remote attacker to guess currently logged-in administrators' session session token in order to gain access to the product's web management interface.

Category

8.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.50% Top 20%
Vendor Advisory trendmicro.com
Affected: Trend Micro Trend Micro IM Security
Published at:
Updated at:

References

Link Tags
https://success.trendmicro.com/solution/000286439 patch vendor advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-525/ third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2021-31520?
CVE-2021-31520 has been scored as a high severity vulnerability.
How to fix CVE-2021-31520?
To fix CVE-2021-31520, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-31520 being actively exploited in the wild?
It is possible that CVE-2021-31520 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-31520?
CVE-2021-31520 affects Trend Micro Trend Micro IM Security.
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