CVE-2021-42756 (GCVE-0-2021-42756)

Vulnerability from cvelistv5 – Published: 2023-02-16 18:05 – Updated: 2024-10-23 14:49
VLAI?
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.
Severity ?
9.3 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C
CWE
  • CWE-121 - Execute unauthorized code or commands
Assigner
References
Impacted products
Vendor Product Version
Fortinet FortiWeb Affected: 6.4.0 , ≤ 6.4.1 (semver)
Affected: 6.3.0 , ≤ 6.3.16 (semver)
Affected: 6.2.0 , ≤ 6.2.6 (semver)
Affected: 6.1.0 , ≤ 6.1.2 (semver)
Affected: 6.0.0 , ≤ 6.0.7 (semver)
Affected: 5.9.0 , ≤ 5.9.1 (semver)
Affected: 5.8.5 , ≤ 5.8.7 (semver)
Affected: 5.8.0 , ≤ 5.8.3 (semver)
Affected: 5.7.0 , ≤ 5.7.3 (semver)
Affected: 5.6.0 , ≤ 5.6.2 (semver)
Affected: 5.8.0 , < 5.8.* (semver)
Affected: 5.7.0 , < 5.7.* (semver)
Affected: 5.6.0 , < 5.6.* (semver)
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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.