Known exploited vulnerability
CVE-2023-6548
The short answer
CVE-2023-6548 affects Cloud Software Group NetScaler ADC and is rated high (CVSS 8.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2024-01-17: attackers are using it, so patch it first.
What it is
Improper Control of Generation of Code ('Code Injection') in NetScaler ADC and NetScaler Gateway allows an attacker with access to NSIP, CLIP or SNIP with management interface to perform Authenticated (low privileged) remote code execution on Management Interface.
Weakness: CWE-94.
Severity
8.8 high
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Jan 17, 2024
Federal due date Jan 24, 2024
EPSS, next 30 days
3.2%
Higher than 88% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- 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
NetScaler ADC, NetScaler Gateway, netscaler_application_delivery_controller, netscaler_gateway. NVD's record lists the exact affected versions.
References
- support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549 Vendor Advisory
- support.citrix.com/article/CTX584986/netscaler-adc-and-netscaler-gateway-security-bulletin-for-cve20236548-and-cve20236549 Vendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-6548 US Government Resource
Questions
Is CVE-2023-6548 being exploited?
Yes. CISA added CVE-2023-6548 to its Known Exploited Vulnerabilities catalog on 2024-01-17, with a federal remediation due date of 2024-01-24.
How do I fix CVE-2023-6548?
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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