Strix
26.1K

CVE-2020-2033

MEDIUMCVSS 5.3/10EPSS 0.76%

Last modified

CVE-2020-2033 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. When the pre-logon feature is enabled, a missing certification validation in Palo Alto Networks GlobalProtect app can disclose the pre-logon authentication cookie to a man-in-the-middle attacker on the same local area network segment with the ability to manipulate ARP or to conduct ARP spoofing attacks. This allows the attacker to access the GlobalProtect Server as allowed by configured Security rules for the 'pre-login' user. EPSS estimates a 0.76% chance of exploitation in the next 30 days.

Description

When the pre-logon feature is enabled, a missing certification validation in Palo Alto Networks GlobalProtect app can disclose the pre-logon authentication cookie to a man-in-the-middle attacker on the same local area network segment with the ability to manipulate ARP or to conduct ARP spoofing attacks. This allows the attacker to access the GlobalProtect Server as allowed by configured Security rules for the 'pre-login' user. This access may be limited compared to the network access of regular users. This issue affects: GlobalProtect app 5.0 versions earlier than GlobalProtect app 5.0.10 when the prelogon feature is enabled; GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.4 when the prelogon feature is enabled.

Metrics

CVSS 3.1
5.3/10

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability
0.76%

50.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PaloaltonetworksGlobalprotect>= 5.0.0, < 5.0.10
PaloaltonetworksGlobalprotect>= 5.1.0, < 5.1.4

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-2033?
When the pre-logon feature is enabled, a missing certification validation in Palo Alto Networks GlobalProtect app can disclose the pre-logon authentication cookie to a man-in-the-middle attacker on the same local area network segment with the ability to manipulate ARP or to conduct ARP spoofing attacks. This allows the attacker to access the GlobalProtect Server as allowed by configured Security rules for the 'pre-login' user. This access may be limited compared to the network access of regular users. This issue affects: GlobalProtect app 5.0 versions earlier than GlobalProtect app 5.0.10 when the prelogon feature is enabled; GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.4 when the prelogon feature is enabled.
How severe is CVE-2020-2033?
CVE-2020-2033 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.76% probability of exploitation in the next 30 days.
How do I fix CVE-2020-2033?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-2033?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST