Paper/Archive/CVE-2023-27997

CVE-2023-27997

Fortinet FortiOS-6K7K — Fortinet FortiOS and FortiProxy SSL-VPN Heap-Based Buffer Overflow Vulnerability

KEV · due 4 Jul ransomware use EPSS 86%public exploit SSVC act CVSS 9.2

CVSS 9.2 (CNA)9.2 / 10 × 3027.6 In CISA KEV+3030.0 EPSS percentile 99.7.997 × 2019.9 Exploit: SSVC active+1010.0 SSVC exploitation: active+1010.0

Description · from the CVE record

A heap-based buffer overflow vulnerability [CWE-122] in FortiOS version 7.2.4 and below, version 7.0.11 and below, version 6.4.12 and below, version 6.0.16 and below and FortiProxy version 7.2.3 and below, version 7.0.9 and below, version 2.0.12 and below, version 1.2 all versions, version 1.1 all versions SSL-VPN may allow a remote attacker to execute arbitrary code or commands via specifically crafted requests.

Affected

ProductAffectedFixed inSource

FortiOS-6K7K7.0.10–CNA

FortiOS-6K7K7.0.5–CNA

FortiOS-6K7K6.4.12–CNA

FortiOS-6K7K6.4.10–CNA

FortiOS-6K7K6.4.8–CNA

FortiOS-6K7K6.4.6–CNA

FortiOS-6K7K6.4.2–CNA

FortiOS-6K7K6.2.9 – 6.2.13–CNA

FortiOS-6K7K6.2.6 – 6.2.7–CNA

FortiOS-6K7K6.2.4–CNA

FortiOS-6K7K6.0.12 – 6.0.16–CNA

FortiOS-6K7K6.0.10–CNA

Scores by source

fortinet (CNA)9.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:X/RC:R

CISA ADPSSVCExploitation: active · Automatable: yes · Technical impact: total

References

reffortiguard.com/psirt/FG-IR-23-097 refcisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-27997 kevcisa.gov/known-exploited-vulnerabilities-catalog