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CVE-2021-42756

Multiple stack-based buffer overflow vulnerabilities [CWE-121] in the proxy daemon of FortiWeb 5.x all versions, 6.0.7 and below, 6.1.2 and

Published
Last modified
published
Not listed in CISA KEV
1 proof of concept on GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: total

Summary

Multiple stack-based buffer overflow vulnerabilities [CWE-121] in the proxy daemon of FortiWeb 5.x all versions, 6.0.7 and below, 6.1.2 and below, 6.2.6 and below, 6.3.16 and below, 6.4 all versions may allow an unauthenticated remote attacker to achieve arbitrary code execution via specifically crafted HTTP requests.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: total

  3. Record last updated
  4. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • Fortinet FortiWeb

    From 6.4.0 · through 6.4.1; From 6.3.0 · through 6.3.16; From 6.2.0 · through 6.2.6; From 6.1.0 · through 6.1.2; From 6.0.0 · through 6.0.7; From 5.9.0 · through 5.9.1; From 5.8.5 · through 5.8.7; From 5.8.0 · through 5.8.3; From 5.7.0 · through 5.7.3; From 5.6.0 · through 5.6.2; From 5.8.0; From 5.7.0; From 5.6.0

References 2

fortiguard.com

GitHub · 3ndorph1n/CVE-2021-42756