CVE-2023-42782
A insufficient verification of data authenticity vulnerability [CWE-345] in FortiAnalyzer version 7.4.0 and below 7.2.3 allows a remote unauthenticated attacker to send messages to the syslog server
02 Description
A insufficient verification of data authenticity vulnerability [CWE-345] in FortiAnalyzer version 7.4.0 and below 7.2.3 allows a remote unauthenticated attacker to send messages to the syslog server
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.43% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 37.4% of scored records. A rank, not a probability.
- NVD base score
- 5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2023-10-10 16:50Z3 YR AGO
- Last updated
- 2024-09-18 20:50Z2 YR AGO
- Reserved
- 2023-09-14
- Assigning CNA
- fortinet
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.0)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:C
- Weaknesses
- CWE-345Insufficient Verification of Data AuthenticityClass
- Data version
- 5.1
- Document digest
- 35013c23da60bdb2e5a617eb90b91edb74fa339ac075774f1125a6abc9b2cc2b
05 Affected products
06 References
- fortiguard.comhttps://fortiguard.com/psirt/FG-IR-23-221
07 Remediation
Please upgrade to FortiAnalyzer version 7.4.1 or above Please upgrade to FortiAnalyzer version 7.2.4 or above AND Configure the "un-encrypted-logging" option to disable receiving syslog without encryption through UDP(514) or TCP(514). config system log setting set un-encrypted-logging disable