CVE-2020-1993: PAN-OS: GlobalProtect Portal PHP session fixation vulnerability
First published: Wed May 13 2020(Updated: )
The GlobalProtect Portal feature in PAN-OS does not set a new session identifier after a successful user login, which allows session fixation attacks, if an attacker is able to control a user's session ID. This issue affects: All PAN-OS 7.1 and 8.0 versions; PAN-OS 8.1 versions earlier than 8.1.14; PAN-OS 9.0 versions earlier than 9.0.8.
Credit: psirt@paloaltonetworks.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Palo Alto Networks PAN-OS | >=7.1.0<=7.1.26 | |
| Palo Alto Networks PAN-OS | >=8.0.0<=8.0.20 | |
| Palo Alto Networks PAN-OS | >=8.1.0<=8.1.13 | |
| Palo Alto Networks PAN-OS | >=9.0.0<=9.0.7 |
Remedy
This issue is fixed in PAN-OS 8.1.14, PAN-OS 9.0.8, PAN-OS 9.1.0, PAN-OS 9.2.0, and all later PAN-OS versions. PAN-OS 8.0 is now end-of-life as of October 31, 2019, and is no longer covered by our Product Security Assurance policies. PAN-OS 7.1 is on extended support until June 30, 2020, and is only being considered for critical security vulnerability fixes.
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2020-1993?
CVE-2020-1993 is considered a high severity vulnerability due to the potential for session fixation attacks.
How do I fix CVE-2020-1993?
To resolve CVE-2020-1993, upgrade to a patched version of PAN-OS beyond the affected versions listed.
What impact does CVE-2020-1993 have on user sessions?
CVE-2020-1993 allows attackers to control a user's session ID, leading to unauthorized access to user sessions.
Which versions of PAN-OS are affected by CVE-2020-1993?
CVE-2020-1993 affects all PAN-OS versions from 7.1.x, 8.0.x, and specific versions of 8.1.x up to 8.1.13.
Is a workaround available for CVE-2020-1993?
No official workaround is provided for CVE-2020-1993; the best mitigation is to update to the latest version of PAN-OS.
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- version/palo alto networks pan-os/7.1.26
- version/palo alto networks pan-os/8.0.0
- version/palo alto networks pan-os/8.0.20
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- version/palo alto networks pan-os/8.1.13
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- version/palo alto networks pan-os/9.0.7