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paloaltoPalo Alto Networks Product Security Incident Response TeamPA-CVE-2021-3056
HistoryNov 10, 2021 - 5:00 p.m.

PAN-OS: Memory Corruption Vulnerability in GlobalProtect Clientless VPN During SAML Authentication

2021-11-1017:00:00
Palo Alto Networks Product Security Incident Response Team
securityadvisories.paloaltonetworks.com
33
memory corruption
globalprotect
saml authentication
palo alto networks
unique threat id
traffic
firewall
cve-2021-3056
workaround

CVSS2

8.5

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:S/C:C/I:C/A:C

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

44.6%

JSON

A memory corruption vulnerability in Palo Alto Networks PAN-OS GlobalProtect Clientless VPN enables an authenticated attacker to execute arbitrary code with root user privileges during SAML authentication.

Work around:
Enable signatures for Unique Threat ID 91585 on traffic processed by the firewall to block attacks against CVE-2021-3056.

Affected configurations

Vulners
Node
softwarepan-osRange<9.0.14
OR
softwarepan-osRange<8.1.20
OR
softwarepan-osRange<9.1.9
OR
softwarepan-osRange<10.0.1
OR
softwareprisma_access
VendorProductVersionCPE
softwarepan-os*cpe:2.3:a:software:pan-os:*:*:*:*:*:*:*:*
softwareprisma_access*cpe:2.3:a:software:prisma_access:*:*:*:*:*:*:*:*

Related

nessus 1
prion 1
cve 1
cnvd 1
nvd 1
cvelist 1
nessus
nessus
Palo Alto Networks PAN-OS 8.1.x < 8.1.20 / 9.0.x < 9.0.14 / 9.1.x < 9.1.9 / 10.0.x < 10.0.1 Vulnerability
2021-11-18 00:00:00
prion
prion
Memory corruption
2021-11-10 17:15:00
cve
cve
CVE-2021-3056
2021-11-10 17:15:09
cnvd
cnvd
Palo Alto Networks PAN-OS Memory Corruption Vulnerability (CNVD-2021-102821)
2021-11-13 00:00:00
nvd
nvd
CVE-2021-3056
2021-11-10 17:15:09
cvelist
cvelist
CVE-2021-3056 PAN-OS: Memory Corruption Vulnerability in GlobalProtect Clientless VPN During SAML Authentication
2021-11-10 17:10:20

CVSS2

8.5

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:S/C:C/I:C/A:C

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

44.6%

JSON
Related for PA-CVE-2021-3056
nessus1prion1cve1cnvd1nvd1cvelist1