ESB-2018.3290 - [Juniper] Juniper Junos OS: Execute arbitrary code/commands - Remote/unauthenticated 2018-10-26

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2018.3290
 2018-07 Security Bulletin: Junos OS: RPD daemon crashes due to receipt of
             crafted BGP NOTIFICATION messages (CVE-2018-0037)
                              26 October 2018

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

Product:           Juniper Junos OS
Publisher:         Juniper Networks
Operating System:  Juniper
Impact/Access:     Execute Arbitrary Code/Commands -- Remote/Unauthenticated
                   Denial of Service               -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-0037  

Original Bulletin: 
   https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10871

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2018-07 Security Bulletin: Junos OS: RPD daemon crashes due to receipt of
crafted BGP NOTIFICATION messages (CVE-2018-0037)

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Product Affected:
This issue affects Junos OS 15.1, 15.1F5, 15.1F6, 15.1F7.

Problem:
Junos OS routing protocol daemon (RPD) process may crash and restart or may
lead to remote code execution while processing specific BGP NOTIFICATION
messages.
By continuously sending crafted BGP NOTIFICATION messages, an attacker can
repeatedly crash the RPD process causing a sustained Denial of Service.

Due to design improvements, this issue does not affect Junos OS 16.1R1, and all
subsequent releases.

This issue only affects the receiving BGP device and is non-transitive in
nature.

Affected releases are Juniper Networks Junos OS:
15.1F5 versions starting from 15.1F5-S7 and all subsequent releases;
15.1F6 versions starting from 15.1F6-S3 and later releases prior to 15.1F6-S10;
15.1F7 versions
15.1 versions starting from 15.1R5 and later releases, including the Service
Releases based on 15.1R5 and on 15.1R6 prior to 15.1R6-S6 and 15.1R7;

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-2018-0037.
Solution:
The following software releases have been updated to resolve this specific
issue: 15.1F6-S10, 15.1R6-S6, 15.1R7 and all subsequent releases.

This fix has been proactively committed into Junos OS 15.1X53-D67, 16.1R3-S8,
16.1R4-S8, 16.1R5-S4, 16.1R6-S3, 16.1R7, 16.2R1-S6, 16.2R3, 17.1R1-S7,
17.1R2-S6, 17.1R3, 17.2R1-S5, 17.2R2-S3, 17.2R3, 17.2X75-D100, 17.2X75-D110,
17.3R1-S4, 17.3R2-S1, 17.3R3, 17.4R1-S2, 17.4R2, 18.1R2, 18.2R1, 18.2X75-D5 and
all subsequent releases.

This issue is being tracked as PR 1340689 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:
While there are no known workarounds for this issue, the risk associated with
this issue can be mitigated by limiting the BGP connection only from trusted
peers.

Implementation:
Software Releases, patches and updates are available at https://www.juniper.net
/support/downloads/.

Modification History:

2018-07-11: Initial Publication.
2018-10-25: Removing 16.2R2-S5 from proactively committed list, it does not change the original resolved in list.

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 Vulnerability - How to Contact the Juniper Networks Security
    Incident Response Team

  o CVE-2018-0037: Junos OS: RPD daemon crashes due to receipt of crafted BGP
    NOTIFICATION messages

CVSS Score:
9.8 (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Risk Level:
Critical

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."

Acknowledgements:
The Juniper SIRT would like to would like to acknowledge and thank Internet2
and The Indiana University GlobalNOC for responsibly disclosing this
vulnerability.

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