Serious VPN vulnerability found in popular business networking software VPN
During an internal security review, Palo Alto Networks discovered an authentication bypass vulnerability in some versions of their PAN-OS software. The vulnerability can be exploited to gain access to restricted VPN network resources.
PAN‑OS is the software that powers all of Palo Alto Networks firewalls products. The vulnerability affects certain versions of four branches of PAN-OS. On PAN-OS 8.1, it affects versions earlier than PAN-OS 8.1.17; on PAN-OS 9.0 versions earlier than PAN-OS 9.0.11; on PAN-OS 9.1 versions earlier than PAN-OS 9.1.5; and on PAN-OS 10.0 versions earlier than PAN-OS 10.0.1.
Even if you are using an affected version, you’re only ath risk if your PAN-OS appliance is set to allow users to authenticate with client certificate authentication.
Stay updated
The authentication bypass issue specifically exists in the GlobalProtect SSL VPN component of PAN-OS.
For the attack to be successful, your appliance must be running one of the older PAN-OS versions mentioned above. Furthermore, you must have configured the appliance to rely solely on certificate-based authentication. In such a scenario, an attacker could gain access to the network bypassing all client certificate checks.
Palo Alto Networks have tagged the issue as high severity, although it isn’t aware of any malicious exploitation of this issue in the wild.
To mitigate the issue, make sure your appliance is running the newest version of the respective PAN-OS branch. You can also configure the GlobalProtect SSL VPN to require all gateway and portal users to authenticate using their credentials instead of relying on certificates.
During an internal security review, Palo Alto Networks discovered an authentication bypass vulnerability in some versions of their PAN-OS software. The vulnerability can be exploited to gain access to restricted VPN network resources. PAN‑OS is the software that powers all of Palo Alto Networks firewalls products. The vulnerability affects certain…
Recent Posts
- Quordle today – hints and answers for Friday, May 3 (game #830)
- NYT Strands today — hints, answers and spangram for Friday, May 3 (game #61)
- Microsoft says it did a lot for responsible AI in inaugural transparency report
- Samsung’s best customization app for Galaxy phones is now on Google Play
- Want to Buy a Decommissioned Supercomputer? Here’s Your Chance
Archives
- May 2024
- April 2024
- March 2024
- February 2024
- January 2024
- December 2023
- November 2023
- October 2023
- September 2023
- August 2023
- July 2023
- June 2023
- May 2023
- April 2023
- March 2023
- February 2023
- January 2023
- December 2022
- November 2022
- October 2022
- September 2022
- August 2022
- July 2022
- June 2022
- May 2022
- April 2022
- March 2022
- February 2022
- January 2022
- December 2021
- November 2021
- October 2021
- September 2021
- August 2021
- July 2021
- June 2021
- May 2021
- April 2021
- March 2021
- February 2021
- January 2021
- December 2020
- November 2020
- October 2020
- September 2020
- August 2020
- July 2020
- June 2020
- May 2020
- April 2020
- March 2020
- February 2020
- January 2020
- December 2019
- November 2019
- December 2011