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Beveilingsadvies; NCSC-2025-0203 [1.0.0]
- Beveiligingsadvies
- NCSC-2025-0203 [1.0.0]
- Publicatie
- 25-06-2025 14:54
- Prioriteit
- Hoog
- Betreft
- Kwetsbaarheid verholpen in Citrix NetScaler ADC en NetScaler Gateway
Kenmerken
- Improper Restriction of Operations within the Bounds of a Memory Buffer
Omschrijving
Citrix heeft een kwetsbaarheid verholpen in NetScaler ADC en NetScaler Gateway.
Om kwetsbaar te zijn moet NetScaler worden geconfigureerd als Gateway (VPN-virtuele server, ICA Proxy, CVPN, RDP Proxy) of AAA virtual server. Let op, dit is vaak default config.
De kwetsbaarheid bevindt zich in de manier waarop geheugen wordt beheerd in NetScaler ADC en NetScaler Gateway. Dit kan leiden tot ongewenste 'control flow' en 'Denial-of-Service' situaties, vooral wanneer de producten zijn geconfigureerd als Gateway of AAA virtuele servers. De impact kan bestaan uit serviceonderbrekingen en aangetaste systeemintegriteit. Citrix meldt dat er exploits op niet-gemitigeerde systemen zijn waargenomen. Het NCSC adviseert organisaties met klem om de door Citrix beschikbaar gestelde beveiligingsupdate op korte termijn te installeren.
Oplossingen
Citrix heeft updates uitgebracht om de kwetsbaarheid te verhelpen. Zie bijgevoegde referenties voor meer informatie.
Referenties
CVE's
Producten
NetScaler
| ADC | 13.1fipsandndcpp|<37.236, 13.1|<59.19, 14.1|<47.46 | known_affected |
| Gateway | 13.1|<59.19, 13.1fipsandndcpp|<37.236, 14.1|<47.46 | known_affected |
Disclaimer
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