Palo Alto Networks Security Advisories / PAN-SA-2020-0005

PAN-SA-2020-0005 PAN-OS: OpenSSH software upgraded to resolve multiple vulnerabilities

047910
Severity 7.8 · HIGH
Attack Vector LOCAL
Attack Complexity LOW
Privileges Required LOW
User Interaction NONE
Scope UNCHANGED
Confidentiality Impact HIGH
Integrity Impact HIGH
Availability Impact HIGH

Description

OpenSSH software included with PAN-OS has been upgraded to resolve security vulnerability CVE-2016-10012. Additionally, code changes have been made to the server component of the OpenSSH software included in PAN-OS in response to CVE-2015-8325 and CVE-2016-1908 though PAN-OS is not impacted by these issues.

This issues affects:

PAN-OS 7.1 versions earlier than 7.1.26;

PAN-OS 8.1 versions earlier than 8.1.13;

PAN-OS 9.0 versions earlier than 9.0.1;

All versions of PAN-OS 8.0.

CVECVSSSummary
CVE-2016-100127.8 (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)The shared memory manager (associated with pre-authentication compression) in sshd in OpenSSH before 7.4 does not ensure that a bounds check is enforced by all compilers, which might allows local users to gain privileges by leveraging access to a sandboxed privilege-separation process, related to the m_zback and m_zlib data structures.

Product Status

PAN-OS

VersionsAffectedUnaffected
9.0< 9.0.1>= 9.0.1
8.1< 8.1.13>= 8.1.13
8.08.0.*
7.1< 7.1.26>= 7.1.26

Severity: HIGH

CVSSv3.1 Base Score: 7.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Weakness Type

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

Solution

This issue is fixed in PAN-OS 7.1.26, PAN-OS 8.1.13, PAN-OS 9.0.1, 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.

Workarounds and Mitigations

This issue affects the management interface of PAN-OS and is strongly mitigated by following best practices for securing the PAN-OS management interface. Please review the Best Practices for Securing Administrative Access in the PAN-OS technical documentation, available at: https://docs.paloaltonetworks.com.

Timeline

Initial publication
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