A out-of-bounds write vulnerability in Fortinet FortiOS 7.4.0 through 7.4.2, FortiOS 7.2.0 through 7.2.6, FortiOS 7.0.0 through 7.0.13, Fort
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Actively exploited
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: active
- Automatable: yes
- Technical impact: total
Summary
The vulnerability affects Fortinet FortiOS and FortiProxy, network security products used to protect and manage enterprise networks. An attacker could exploit it by sending specially crafted requests to run unauthorized code or commands on the affected device.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
A out-of-bounds write vulnerability in Fortinet FortiOS 7.4.0 through 7.4.2, FortiOS 7.2.0 through 7.2.6, FortiOS 7.0.0 through 7.0.13, FortiOS 6.4.0 through 6.4.14, FortiOS 6.2.0 through 6.2.15, FortiOS 6.0 all versions, FortiProxy 7.4.0 through 7.4.2, FortiProxy 7.2.0 through 7.2.8, FortiProxy 7.0.0 through 7.0.14, FortiProxy 2.0.0 through 2.0.13, FortiProxy 01.02 all versions, FortiProxy 1.2 all versions, FortiProxy 01.01 all versions, FortiProxy 1.1 all versions, FortiProxy 01.00 all versions allows attacker to execute unauthorized code or commands via specifically crafted requests
Timeline
- CISA SSVC assessment
Exploitation: active · Automatable: yes · Technical impact: total
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CISA remediation deadline
Due date for US federal agencies to patch
- EPSS reached 10%
FIRST estimates at least a 10% chance of exploitation in the next 30 days
- Record last updated
Affected versions
- Fortinet FortiOS
From 7.4.0 · through 7.4.2; From 7.2.0 · through 7.2.6; From 7.0.0 · through 7.0.13; From 6.4.0 · through 6.4.14; From 6.2.0 · through 6.2.15; From 6.0.0 · through 6.0.18
- Fortinet FortiProxy
From 7.4.0 · through 7.4.2; From 7.2.0 · through 7.2.8; From 7.0.0 · through 7.0.14; From 2.0.0 · through 2.0.13; From 1.2.1 · through 1.2.13; From 1.1.4 · through 1.1.6; From 01.01.00 · through 01.01.03; From 01.00.00 · through 01.00.07
References 1
fortiguard.com
Questions about CVE-2024-21762
What does this mean?
An out-of-bounds write flaw (CWE-787) in FortiOS and FortiProxy may allow specially crafted HTTP requests to execute arbitrary code or commands on the affected device.Source: fortiguard.com
Am I affected, and how do I check?
FortiOS 7.4.0 through 7.4.2, 7.2.0 through 7.2.6, 7.0.0 through 7.0.13, 6.4.0 through 6.4.14, 6.2.0 through 6.2.15, and 6.0.0 through 6.0.18 are listed. FortiProxy 7.4.0 through 7.4.2, 7.2.0 through 7.2.8, 7.0.0 through 7.0.14, 2.0.0 through 2.0.13, 1.2.1 through 1.2.13, 1.1.4 through 1.1.6, 01.01.00 through 01.01.03, and 01.00.00 through 01.00.07 are listed. The advisory's workaround applies when SSL VPN is enabled, so check the firmware version and whether SSL VPN is turned on in the device settings.Source: fortiguard.com
What should I do about it?
The advisory's stated fix is to upgrade to 7.4.3 or above.Source: fortiguard.com
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2024-02-09, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data
What if there's no patch?
Disable SSL VPN, which is the workaround the advisory gives while no fix is installed.Source: fortiguard.com