Auth bypass in Trend Micro Im Security
CVE-2021-31520
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.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.039 (89.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 89.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.039 · newest: 0.039 · change: 0.000
Affected products
- Trend Micro Im Security — versions 1.6, 1.6.5
- Trendmicro Im Security — versions 1.6, 1.6.5
Weakness classification (CWE)
References
- success.trendmicro.com/solution/000286439 (Patch, Vendor Advisory)
- www.zerodayinitiative.com/advisories/ZDI-21-525/ (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-31520?
- CVE-2021-31520 is a high-severity vulnerability in Trend Micro Im Security, classified under Improper Authentication. CVSS score: 8.1/10. Published 2021-05-10.
- How severe is CVE-2021-31520?
- High severity. CVSS v3 base score is 8.1 out of 10.