Known exploited vulnerability
CVE-2023-46747
The short answer
CVE-2023-46747 affects F5 BIG-IP and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2023-10-31: attackers are using it, so patch it first.
What it is
Undisclosed requests may bypass configuration utility authentication, allowing an attacker with network access to the BIG-IP system through the management port and/or self IP addresses to execute arbitrary system commands. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated
Severity
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Oct 31, 2023
Federal due date Nov 21, 2023
EPSS, next 30 days
97%
Higher than 100% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Affected products
BIG-IP. NVD's record lists the exact affected versions.
References
- my.f5.com/manage/s/article/K000137353 Vendor Advisory
- www.secpod.com/blog/f5-issues-warning-big-ip-vulnerability-used-in-active-exploit-chain/ ExploitThird Party Advisory
- my.f5.com/manage/s/article/K000137353 Vendor Advisory
- www.secpod.com/blog/f5-issues-warning-big-ip-vulnerability-used-in-active-exploit-chain/ ExploitThird Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-46747 US Government Resource
Questions
Is CVE-2023-46747 being exploited?
Yes. CISA added CVE-2023-46747 to its Known Exploited Vulnerabilities catalog on 2023-10-31, with a federal remediation due date of 2023-11-21. CISA lists it as used in ransomware campaigns.
How do I fix CVE-2023-46747?
CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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