high
8.4
CWE
77
Advisory Published
Updated

CVE-2016-4922: Junos: Privilege escalation vulnerabilities in Junos CLI

First published: Fri Oct 13 2017(Updated: )

Certain combinations of Junos OS CLI commands and arguments have been found to be exploitable in a way that can allow unauthorized access to the operating system. This may allow any user with permissions to run these CLI commands the ability to achieve elevated privileges and gain complete control of the device. Affected releases are Juniper Networks Junos OS 11.4 prior to 11.4R13-S3; 12.1X46 prior to 12.1X46-D60; 12.1X47 prior to 12.1X47-D45; 12.3 prior to 12.3R12; 12.3X48 prior to 12.3X48-D35; 13.2 prior to 13.2R9; 13.3 prior to 13.3R4-S11, 13.3R9; 14.1 prior to 14.1R4-S12, 14.1R7; 14.1X53 prior to 14.1X53-D28, 14.1X53-D40; 14.1X55 prior to 14.1X55-D35; 14.2 prior to 14.2R3-S10, 14.2R4-S7, 14.2R5; 15.1 prior to 15.1F4, 15.1R3; 15.1X49 prior to 15.1X49-D60; 15.1X53 prior to 15.1X53-D57, 15.1X53-D70.

Credit: sirt@juniper.net

Affected SoftwareAffected VersionHow to fix
Juniper Junos=11.4
Juniper Junos=11.4-r1
Juniper Junos=11.4-r10
Juniper Junos=11.4-r11
Juniper Junos=11.4-r12
Juniper Junos=11.4-r2
Juniper Junos=11.4-r3
Juniper Junos=11.4-r4
Juniper Junos=11.4-r5
Juniper Junos=11.4-r6
Juniper Junos=11.4-r7
Juniper Junos=11.4-r8
Juniper Junos=11.4-r9
Juniper Junos=11.4r13-s2
Juniper Junos=12.1x46
Juniper Junos=12.1x46-d10
Juniper Junos=12.1x46-d15
Juniper Junos=12.1x46-d20
Juniper Junos=12.1x46-d25
Juniper Junos=12.1x46-d30
Juniper Junos=12.1x46-d35
Juniper Junos=12.1x46-d40
Juniper Junos=12.1x46-d45
Juniper Junos=12.1x46-d50
Juniper Junos=12.1x46-d55
Juniper Junos=12.1x47
Juniper Junos=12.1x47-d10
Juniper Junos=12.1x47-d15
Juniper Junos=12.1x47-d20
Juniper Junos=12.1x47-d25
Juniper Junos=12.1x47-d30
Juniper Junos=12.1x47-d35
Juniper Junos=12.1x47-d40
Juniper Junos=12.3
Juniper Junos=12.3-r1
Juniper Junos=12.3-r10
Juniper Junos=12.3-r11
Juniper Junos=12.3-r2
Juniper Junos=12.3-r3
Juniper Junos=12.3-r4
Juniper Junos=12.3-r5
Juniper Junos=12.3-r6
Juniper Junos=12.3-r7
Juniper Junos=12.3-r8
Juniper Junos=12.3-r9
Juniper Junos=12.3x48-d10
Juniper Junos=12.3x48-d15
Juniper Junos=12.3x48-d25
Juniper Junos=12.3x48-d30
Juniper Junos=13.2
Juniper Junos=13.2-r1
Juniper Junos=13.2-r2
Juniper Junos=13.2-r3
Juniper Junos=13.2-r4
Juniper Junos=13.2-r5
Juniper Junos=13.2-r6
Juniper Junos=13.2-r7
Juniper Junos=13.2-r7-s1
Juniper Junos=13.2-r7-s2
Juniper Junos=13.2-r8
Juniper Junos=13.3
Juniper Junos=13.3-r1
Juniper Junos=13.3-r2
Juniper Junos=13.3-r2-s2
Juniper Junos=13.3-r3
Juniper Junos=13.3-r4
Juniper Junos=13.3-r5
Juniper Junos=13.3-r6
Juniper Junos=13.3-r7
Juniper Junos=13.3-r8
Juniper Junos=14.1
Juniper Junos=14.1-r1
Juniper Junos=14.1-r2
Juniper Junos=14.1-r3
Juniper Junos=14.1-r4
Juniper Junos=14.1-r5
Juniper Junos=14.1-r6
Juniper Junos=14.1x53
Juniper Junos=14.1x53-d10
Juniper Junos=14.1x53-d15
Juniper Junos=14.1x53-d16
Juniper Junos=14.1x53-d25
Juniper Junos=14.1x53-d26
Juniper Junos=14.1x53-d27
Juniper Junos=14.1x53-d30
Juniper Junos=14.1x53-d35
Juniper Junos=14.1x55
Juniper Junos=14.1x55-d30
Juniper Junos=14.2
Juniper Junos=14.2-r1
Juniper Junos=14.2-r2
Juniper Junos=14.2-r3
Juniper Junos=14.2-r4
Juniper Junos=14.2-r5
Juniper Junos=15.1
Juniper Junos=15.1-a1
Juniper Junos=15.1-f1
Juniper Junos=15.1-f2
Juniper Junos=15.1-f2-s1
Juniper Junos=15.1-f2-s2
Juniper Junos=15.1-f2-s3
Juniper Junos=15.1-f2-s4
Juniper Junos=15.1-f3
Juniper Junos=15.1-r1
Juniper Junos=15.1-r2
Juniper Junos=15.1x49
Juniper Junos=15.1x49-d10
Juniper Junos=15.1x49-d20
Juniper Junos=15.1x49-d30
Juniper Junos=15.1x49-d35
Juniper Junos=15.1x49-d40
Juniper Junos=15.1x49-d45
Juniper Junos=15.1x49-d50
Juniper Junos=15.1x49-d55
Juniper Junos=15.1x53-d20
Juniper Junos=15.1x53-d21
Juniper Junos=15.1x53-d210
Juniper Junos=15.1x53-d25
Juniper Junos=15.1x53-d30
Juniper Junos=15.1x53-d32
Juniper Junos=15.1x53-d33
Juniper Junos=15.1x53-d34
Juniper Junos=15.1x53-d50
Juniper Junos=15.1x53-d51
Juniper Junos=15.1x53-d52
Juniper Junos=15.1x53-d55
Juniper Junos=15.1x53-d60
Juniper Junos=15.1x53-d61
Juniper Junos=15.1x53-d62
Juniper Junos=15.1x53-d63
Juniper Junos=15.1x53-d64
Juniper Junos=15.1x53-d65

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2016-4922?

    CVE-2016-4922 is considered a high severity vulnerability as it allows unauthorized access and escalation of privileges.

  • How do I fix CVE-2016-4922?

    To mitigate CVE-2016-4922, you should upgrade to a fixed release of Junos OS provided by Juniper Networks.

  • What versions of Junos OS are affected by CVE-2016-4922?

    CVE-2016-4922 affects multiple versions of Junos OS including 11.4, 12.1x46, 12.3, and 15.1 among others.

  • What consequences can result from exploiting CVE-2016-4922?

    Exploitation of CVE-2016-4922 can lead to unauthorized access to the operating system and potential control over critical network devices.

  • Are there workarounds for CVE-2016-4922?

    While upgrading is the recommended solution, restricting access to the CLI commands involved can serve as a temporary workaround for CVE-2016-4922.

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