Operating System:

[Juniper]

Published:

10 October 2019

Protect yourself against future threats.

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.3791
JSA10952 - 2019-10 Security Bulletin: Junos OS: SRX Series: An attacker may
        be able to perform Man-in-the-Middle (MitM) attacks during
                 app-id signature updates. (CVE-2019-0054)
                              10 October 2019

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Juniper SRX Series
Publisher:         Juniper Networks
Operating System:  Juniper
Impact/Access:     Root Compromise                -- Existing Account      
                   Modify Arbitrary Files         -- Remote/Unauthenticated
                   Denial of Service              -- Remote/Unauthenticated
                   Provide Misleading Information -- Remote/Unauthenticated
                   Access Confidential Data       -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2019-0060 CVE-2019-0058 CVE-2019-0055
                   CVE-2019-0054  

Original Bulletin: 
   http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10952
   http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10953
   http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10956
   http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10959

Comment: This bulletin contains four (4) Juniper Networks security 
         advisories.

- --------------------------BEGIN INCLUDED TEXT--------------------

2019-10 Security Bulletin: Junos OS: SRX Series: An attacker may be able to 
perform Man-in-the-Middle (MitM) attacks during app-id signature updates. 
(CVE-2019-0054)

Article ID:   JSA10952

Last Updated: 09 Oct 2019

Version:      4.0

Product Affected:
This issue affects Junos OS 15.1X49. Affected platforms: SRX Series.
Problem:
An Improper Certificate Validation weakness in the SRX Series Application
Identification (app-id) signature update client of Juniper Networks Junos OS
allows an attacker to perform Man-in-the-Middle (MitM) attacks which may
compromise the integrity and confidentiality of the device.

This issue affects:

Juniper Networks Junos OS 15.1X49 versions prior to 15.1X49-D120 on SRX Series
devices.

No other versions of Junos OS are affected.

The following minimum configuration is required:

services application-identification

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-2019-0054 .

Solution:
The following software releases have been updated to resolve this specific
issue: 15.1X49-D120, and all subsequent releases.

This issue is being tracked as PR 1291665 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:

Set the following command in the device for affected releases:

set services application-identification download secure-download
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-2019-0054 at cve.mitre.org

  o https://www.juniper.net/documentation/en_US/junos/topics/topic-map/
    security-application-identification-overview.html

CVSS Score:
6.8 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N)

Risk Level:
Medium

Risk 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: SRX Series: An attacker may cause flowd to crash by sending certain valid SIP traffic to a device with SIP ALG enabled. (CVE-2019-0055)

Article ID:   JSA10953

Last Updated: 09 Oct 2019

Version:      4.0

Product Affected:
This issue affects Junos OS 12.3X48, 15.1X49, 17.3, 17.4. Affected platforms:
SRX Series.
Problem:
A vulnerability in the SIP ALG packet processing service of Juniper Networks
Junos OS allows an attacker to cause a Denial of Service (DoS) to the device by
sending specific types of valid SIP traffic to the device. In this case, the
flowd process crashes and generates a core dump while processing SIP ALG
traffic.

Continued receipt of these valid SIP packets will result in a sustained Denial
of Service (DoS) condition.

This issue affects:

Juniper Networks Junos OS:

12.3X48 versions prior to 12.3X48-D61, 12.3X48-D65 on SRX Series;

15.1X49 versions prior to 15.1X49-D130 on SRX Series;

17.3 versions prior to 17.3R3 on SRX Series;

17.4 versions prior to 17.4R2 on SRX Series.

This issue only affects SRX Series devices where SIP ALG is enabled.

The following minimum configuration is required:

set security alg sip

Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

This issue was seen during production usage.

This issue has been assigned CVE-2019-0055 .

Solution:
The following software releases have been updated to resolve this specific
issue: 12.3X48-D61, 12.3X48-D65, 15.1X49-D130, 17.3R3, 17.4R2, 18.1R1, and all
subsequent releases.

This issue is being tracked as PR 1329170 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:
Disable SIP ALG if this is not needed, otherwise there are no viable
workarounds for this issue.
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-2019-0055 at cve.mitre.org

  o https://www.juniper.net/documentation/en_US/junos/topics/topic-map/
    security-sip-alg.html

CVSS Score:
7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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: SRX Series: A weakness in the Veriexec subsystem may allow privilege escalation. (CVE-2019-0058)

Article ID:   JSA10956

Last Updated: 09 Oct 2019

Version:      2.0

Product Affected:
This issue affects Junos OS 12.3X48. Affected platforms: SRX Series.
Problem:
A vulnerability in the Veriexec subsystem of Juniper Networks Junos OS allowing
an attacker to fully compromise the host system. A local authenticated user can
elevate privileges to gain full control of the system even if they are
specifically denied access to perform certain actions.

This issue affects:

Juniper Networks Junos OS:

12.3X48 versions prior to 12.3X48-D80 on SRX Series.

This requires a local authenticated user to have shell privilege.

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-2019-0058 .

Solution:
The following software releases have been updated to resolve this specific
issue: Junos OS: 12.3X48-D80 and all subsequent releases.

This issue is being tracked as PR 975878 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:
To reduce the risk of exploitation of this vulnerability, customers should
limit access to the Junos shell to only trusted administrators and limit their
actions to previously reviewed and agreed-upon commands and command arguments
as part of a structured change management workflow. Shell commands which are
run should be logged and reviewed as part of standard security practices.
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-2019-0058 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: SRX Series: flowd process crash due to processing of specific transit IP packets (CVE-2019-0060)

Article ID:   JSA10959

Last Updated: 09 Oct 2019

Version:      3.0

Product Affected:
This issue affects Junos OS 15.1X49, 18.2, 18.4. Affected platforms: SRX
Series.
Problem:

The flowd process, responsible for forwarding traffic in SRX Series services
gateways, may crash and restart when processing specific transit IP packets
through an IPSec tunnel. Continued processing of these packets may result in an
extended Denial of Service (DoS) condition.

This issue only occurs when IPSec tunnels are configured. Systems without IPSec
tunnel configurations are not vulnerable to this issue.

This issue affects Juniper Networks Junos OS:

  o 15.1X49 versions prior to 15.1X49-D171, 15.1X49-D180 on SRX Series;
  o 18.2 versions 18.2R2-S1 and later, prior to 18.2R3 on SRX Series;
  o 18.4 versions prior to 18.4R2 on SRX Series.

The following example shows a sample IPSec tunnel configuration:

[edit security ipsec]
security-association manual-sa1 {
...
}
[edit interfaces es-0/1/0]
...
family inet {
ipsec-sa manual-sa1;

Juniper SIRT is not aware of any malicious exploitation of this vulnerability.

This issue was seen during production usage.

This issue has been assigned CVE-2019-0060 .

Solution:

The following software releases have been updated to resolve this specific
issue: 15.1X49-D171, 15.1X49-D180, 18.2R3, 18.4R2, 19.1R1, and all subsequent
releases.

This issue is being tracked as PR 1409277 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:
There are no viable workarounds for this issue.
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-2019-0060 at cve.mitre.org

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

Risk Level:
High

Risk 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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