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AUSCERT External Security Bulletin Redistribution
ESB-2019.3796.2
JSA10960 - 2019-10 Security Bulletin: Junos OS: Insecure management daemon
(MGD) configuration may allow local privilege escalation (CVE-2019-0061)
23 October 2019
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Junos OS
Publisher: Juniper Networks
Operating System: Juniper
Impact/Access: Administrator Compromise -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2019-0061
Original Bulletin:
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10960
Comment: This bulletin contains two (2) Juniper Networks security advisories.
Revision History: October 23 2019: Vendor updated article JSA10960 to version 5.0
October 10 2019: Initial Release
- --------------------------BEGIN INCLUDED TEXT--------------------
2019-10 Security Bulletin: Junos OS: Insecure management daemon (MGD) configuration may allow local privilege escalation (CVE-2019-0061)
Article ID: JSA10960
Last Updated: 09 Oct 2019
Version: 4.0
Product Affected:
This issue affects Junos OS 15.1X49, 15.1X53, 16.1, 16.2, 17.1, 17.2, 17.3,
17.4, 18.1, 18.2, 18.3, 18.4.
Problem:
The management daemon (MGD) is responsible for all configuration and management
operations in Junos OS. The Junos CLI communicates with MGD over an internal
unix-domain socket and is granted special permission to open this protected
mode socket. Due to a misconfiguration of the internal socket, a local,
authenticated user may be able to exploit this vulnerability to gain
administrative privileges.
This issue only affects Linux-based platforms. FreeBSD-based platforms are
unaffected by this vulnerability.
Exploitation of this vulnerability requires Junos shell access. This issue
cannot be exploited from the Junos CLI.
This issue affects Juniper Networks Junos OS:
o 15.1X49 versions prior to 15.1X49-D171, 15.1X49-D180;
o 15.1X53 versions prior to 15.1X53-D496, 15.1X53-D69;
o 16.1 versions prior to 16.1R7-S4;
o 16.2 versions prior to 16.2R2-S9;
o 17.1 versions prior to 17.1R3;
o 17.2 versions prior to 17.2R1-S8, 17.2R2-S7, 17.2R3-S1;
o 17.3 versions prior to 17.3R3-S4;
o 17.4 versions prior to 17.4R1-S6, 17.4R1-S7, 17.4R2-S3, 17.4R3;
o 18.1 versions prior to 18.1R2-S4, 18.1R3-S4;
o 18.2 versions prior to 18.2R1-S5, 18.2R2-S2, 18.2R3;
o 18.3 versions prior to 18.3R1-S3, 18.3R2;
o 18.4 versions prior to 18.4R1-S2, 18.4R2.
Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
This issue was found during internal product security testing or research.
This issue has been assigned CVE-2019-0061 .
Solution:
The following software releases have been updated to resolve this specific
issue: 15.1X49-D171, 15.1X49-D180, 15.1X53-D496, 15.1X53-D69, 16.1R7-S4,
16.2R2-S9, 17.1R3, 17.2R1-S8, 17.2R2-S7, 17.2R3-S1, 17.3R3-S4, 17.4R1-S6,
17.4R1-S7, 17.4R2-S3, 17.4R3, 18.1R2-S4, 18.1R3-S4, 18.2R1-S5, 18.2R2-S2,
18.2R3, 18.3R1-S3, 18.3R2, 18.4R1-S2, 18.4R2, 19.1R1, and all subsequent
releases.
This issue is being tracked as PR 1406219 which is visible on the Customer
Support website.
Note: Juniper SIRT's policy is not to evaluate releases which are beyond End of
Engineering (EOE) or End of Life (EOL).
Workaround:
Limit access to the Junos shell to only trusted administrators.
Implementation:
Software Releases, patches and updates are available at https://www.juniper.net
/support/downloads/ .
Modification History:
2019-10-09: Initial Publication.
Related Links:
o KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin
Publication Process
o KB16765: In which releases are vulnerabilities fixed
o KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security
Advisories
o Report a Security Vulnerability - How to Contact the Juniper Networks
Security Incident Response Team
o CVE-2019-0061 at cve.mitre.org
CVSS Score:
7.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Severity Level:
High
Severity Assessment:
Information for how Juniper Networks uses CVSS can be found at KB 16446 "Common
Vulnerability Scoring System (CVSS) and Juniper's Security Advisories."
==============================================================================
2019-10 Security Bulletin: Junos OS: Insecure management daemon (MGD) configuration may allow local privilege escalation (CVE-2019-0061)
Article ID: JSA10960
Last Updated: 22 Oct 2019
Version: 5.0
Product Affected:
This issue affects Junos OS 15.1X49, 15.1X53, 16.1, 16.2, 17.1, 17.2, 17.3,
17.4, 18.1, 18.2, 18.3, 18.4.
Problem:
The management daemon (MGD) is responsible for all configuration and management
operations in Junos OS. The Junos CLI communicates with MGD over an internal
unix-domain socket and is granted special permission to open this protected
mode socket. Due to a misconfiguration of the internal socket, a local,
authenticated user may be able to exploit this vulnerability to gain
administrative privileges.
This issue only affects Junos OS Evolved (EVO) platforms and Linux-based Junos
Device Manager (JDM). FreeBSD-based platforms and VMs are unaffected by this
vulnerability. Junos OS Evolved platforms include: PTX10003, QFX5200, and
QFX5220.
Exploitation of this vulnerability requires Junos shell access. This issue
cannot be exploited from the Junos CLI.
This issue affects Juniper Networks Junos OS:
o 15.1X49 versions prior to 15.1X49-D171, 15.1X49-D180;
o 15.1X53 versions prior to 15.1X53-D496, 15.1X53-D69;
o 16.1 versions prior to 16.1R7-S4;
o 16.2 versions prior to 16.2R2-S9;
o 17.1 versions prior to 17.1R3;
o 17.2 versions prior to 17.2R1-S8, 17.2R2-S7, 17.2R3-S1;
o 17.3 versions prior to 17.3R3-S4;
o 17.4 versions prior to 17.4R1-S6, 17.4R1-S7, 17.4R2-S3, 17.4R3;
o 18.1 versions prior to 18.1R2-S4, 18.1R3-S4;
o 18.2 versions prior to 18.2R1-S5, 18.2R2-S2, 18.2R3;
o 18.3 versions prior to 18.3R1-S3, 18.3R2;
o 18.4 versions prior to 18.4R1-S2, 18.4R2.
Note: Some releases listed above may not be supported on the affected
platforms, and are therefore not vulnerable to this issue.
Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
This issue was found during internal product security testing or research.
This issue has been assigned CVE-2019-0061 .
Solution:
The following software releases have been updated to resolve this specific
issue: 15.1X49-D171, 15.1X49-D180, 15.1X53-D496, 15.1X53-D69, 16.1R7-S4,
16.2R2-S9, 17.1R3, 17.2R1-S8, 17.2R2-S7, 17.2R3-S1, 17.3R3-S4, 17.4R1-S6,
17.4R1-S7, 17.4R2-S3, 17.4R3, 18.1R2-S4, 18.1R3-S4, 18.2R1-S5, 18.2R2-S2,
18.2R3, 18.3R1-S3, 18.3R2, 18.4R1-S2, 18.4R2, 19.1R1, and all subsequent
releases.
Note: This fix has been proactively committed into all supported releases. Some
releases listed above may not be supported on the affected platforms, and are
therefore not vulnerable to this issue.
This issue is being tracked as PR 1406219 which is visible on the Customer
Support website.
Note: Juniper SIRT's policy is not to evaluate releases which are beyond End of
Engineering (EOE) or End of Life (EOL).
Workaround:
Limit access to the Junos shell to only trusted administrators.
Implementation:
Software Releases, patches and updates are available at https://www.juniper.net
/support/downloads/ .
Modification History:
2019-10-09: Initial Publication.
2019-10-21: Clarified which Linux-based platforms (EVO) are affected by the
vulnerability.
Related Links:
o KB16613: Overview of the Juniper Networks SIRT Quarterly Security Bulletin
Publication Process
o KB16765: In which releases are vulnerabilities fixed
o KB16446: Common Vulnerability Scoring System (CVSS) and Juniper's Security
Advisories
o Report a Security Vulnerability - How to Contact the Juniper Networks
Security Incident Response Team
o CVE-2019-0061 at cve.mitre.org
CVSS Score:
7.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Severity Level:
High
Severity Assessment:
Information for how Juniper Networks uses CVSS can be found at KB 16446 "Common
Vulnerability Scoring System (CVSS) and Juniper's Security Advisories."
- --------------------------END INCLUDED TEXT--------------------
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