GlobalProtect App: Missing certificate validation vulnerability can disclose pre-logon authentication cookie (Palo Alto Networks GlobalProtect App)

CVE-2020-2033
MEDIUM 5.3

At a glance

Source
NVD
EPSS
EPSS 0.87 % · percentile 59 ()
State
PUBLISHED
Published
Updated
Assigner
palo_alto
NVD status
Modified

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.

Weaknesses (CWE)

  • CWE-290 — Authentication Bypass by Spoofing
  • CWE-295 — Improper Certificate Validation

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 5.3CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:Npalo_alto
CVSS 3.1MEDIUM 5.3CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NNVD · psirt@paloaltonetworks.com (Secondary)
CVSS 3.1MEDIUM 5.3CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:NNVD · nvd@nist.gov (Primary)
CVSS 2.0LOW 2.9AV:A/AC:M/Au:N/C:P/I:N/A:NNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Palo Alto Networks · GlobalProtect Appaffected 5.1 < 5.1.4 ; affected 5.0 < 5.0.10

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD