high
7.8
CWE
798
Advisory Published
Updated

CVE-2021-0245: Junos OS: Junos Fusion: Hard-coded credentials on satellite devices allows a locally authenticated attacker to elevate their privileges.

First published: Thu Apr 22 2021(Updated: )

A Use of Hard-coded Credentials vulnerability in Juniper Networks Junos OS on Junos Fusion satellite devices allows an attacker who is local to the device to elevate their privileges and take control of the device. This issue affects: Juniper Networks Junos OS Junos Fusion Satellite Devices. 16.1 versions prior to 16.1R7-S7; 17.1 versions prior to 17.1R2-S12, 17.1R3-S2; 17.2 versions prior to 17.2R3-S4; 17.3 versions prior to 17.3R3-S8; 17.4 versions prior to 17.4R2-S10; 17.4 version 17.4R3 and later versions; 18.1 versions prior to 18.1R3-S10; 18.2 versions prior to 18.2R2-S7, 18.2R3-S3; 18.3 versions prior to 18.3R1-S7, 18.3R2-S4, 18.3R3-S2; 18.4 versions prior to 18.4R1-S6, 18.4R2-S4, 18.4R3-S1; 19.1 versions prior to 19.1R1-S5, 19.1R2-S1, 19.1R3; 19.2 versions prior to 19.2R1-S4, 19.2R2; 19.3 versions prior to 19.3R2-S5, 19.3R3; 19.4 versions prior to 19.4R1-S1, 19.4R2; 20.1 versions prior to 20.1R1-S1, 20.1R2. This issue does not affected Junos OS releases prior to 16.1R1 or all 19.2R3 and 19.4R3 release versions.

Credit: sirt@juniper.net

Affected SoftwareAffected VersionHow to fix
Juniper Junos=16.1
Juniper Junos=16.1-r
Juniper Junos=16.1-r1
Juniper Junos=16.1-r2
Juniper Junos=16.1-r3
Juniper Junos=16.1-r3-s10
Juniper Junos=16.1-r3-s11
Juniper Junos=16.1-r3-s8
Juniper Junos=16.1-r4
Juniper Junos=16.1-r4-s12
Juniper Junos=16.1-r4-s2
Juniper Junos=16.1-r4-s3
Juniper Junos=16.1-r4-s4
Juniper Junos=16.1-r4-s6
Juniper Junos=16.1-r4-s8
Juniper Junos=16.1-r4-s9
Juniper Junos=16.1-r5
Juniper Junos=16.1-r5-s4
Juniper Junos=16.1-r6
Juniper Junos=16.1-r6-s1
Juniper Junos=16.1-r6-s3
Juniper Junos=16.1-r6-s4
Juniper Junos=16.1-r6-s6
Juniper Junos=16.1-r7
Juniper Junos=16.1-r7-s2
Juniper Junos=16.1-r7-s3
Juniper Junos=16.1-r7-s4
Juniper Junos=16.1-r7-s5
Juniper Junos=16.1-r7-s6
Juniper Junos=17.1
Juniper Junos=17.1-r1
Juniper Junos=17.1-r1-s7
Juniper Junos=17.1-r2
Juniper Junos=17.1-r2-s1
Juniper Junos=17.1-r2-s10
Juniper Junos=17.1-r2-s11
Juniper Junos=17.1-r2-s2
Juniper Junos=17.1-r2-s3
Juniper Junos=17.1-r2-s4
Juniper Junos=17.1-r2-s5
Juniper Junos=17.1-r2-s6
Juniper Junos=17.1-r2-s7
Juniper Junos=17.1-r2-s8
Juniper Junos=17.1-r2-s9
Juniper Junos=17.1-r3
Juniper Junos=17.1-r3-s1
Juniper Junos=17.2
Juniper Junos=17.2-r1
Juniper Junos=17.2-r1-s1
Juniper Junos=17.2-r1-s2
Juniper Junos=17.2-r1-s3
Juniper Junos=17.2-r1-s4
Juniper Junos=17.2-r1-s5
Juniper Junos=17.2-r1-s6
Juniper Junos=17.2-r1-s7
Juniper Junos=17.2-r1-s8
Juniper Junos=17.2-r2
Juniper Junos=17.2-r2-s11
Juniper Junos=17.2-r2-s4
Juniper Junos=17.2-r2-s6
Juniper Junos=17.2-r2-s7
Juniper Junos=17.2-r3
Juniper Junos=17.2-r3-s1
Juniper Junos=17.2-r3-s2
Juniper Junos=17.2-r3-s3
Juniper Junos=17.3
Juniper Junos=17.3-r1
Juniper Junos=17.3-r1-s1
Juniper Junos=17.3-r1-s4
Juniper Junos=17.3-r2
Juniper Junos=17.3-r2-s1
Juniper Junos=17.3-r2-s2
Juniper Junos=17.3-r2-s3
Juniper Junos=17.3-r2-s4
Juniper Junos=17.3-r2-s5
Juniper Junos=17.3-r3
Juniper Junos=17.3-r3
Juniper Junos=17.3-r3-s1
Juniper Junos=17.3-r3-s10
Juniper Junos=17.3-r3-s2
Juniper Junos=17.3-r3-s3
Juniper Junos=17.3-r3-s4
Juniper Junos=17.3-r3-s5
Juniper Junos=17.3-r3-s6
Juniper Junos=17.3-r3-s7
Juniper Junos=17.4
Juniper Junos=17.4-r1
Juniper Junos=17.4-r1-s1
Juniper Junos=17.4-r1-s2
Juniper Junos=17.4-r1-s3
Juniper Junos=17.4-r1-s4
Juniper Junos=17.4-r1-s5
Juniper Junos=17.4-r1-s6
Juniper Junos=17.4-r1-s7
Juniper Junos=17.4-r2
Juniper Junos=17.4-r2-s1
Juniper Junos=17.4-r2-s2
Juniper Junos=17.4-r2-s3
Juniper Junos=17.4-r2-s4
Juniper Junos=17.4-r2-s5
Juniper Junos=17.4-r2-s6
Juniper Junos=17.4-r2-s7
Juniper Junos=17.4-r2-s8
Juniper Junos=17.4-r2-s9
Juniper Junos=18.1
Juniper Junos=18.1-r1
Juniper Junos=18.1-r2
Juniper Junos=18.1-r2-s1
Juniper Junos=18.1-r2-s2
Juniper Junos=18.1-r2-s4
Juniper Junos=18.1-r3
Juniper Junos=18.1-r3-s1
Juniper Junos=18.1-r3-s2
Juniper Junos=18.1-r3-s3
Juniper Junos=18.1-r3-s4
Juniper Junos=18.1-r3-s5
Juniper Junos=18.1-r3-s6
Juniper Junos=18.1-r3-s7
Juniper Junos=18.1-r3-s8
Juniper Junos=18.1-r3-s9
Juniper Junos=18.2
Juniper Junos=18.2-r1
Juniper Junos=18.2-r1-s2
Juniper Junos=18.2-r1-s3
Juniper Junos=18.2-r1-s4
Juniper Junos=18.2-r1-s5
Juniper Junos=18.2-r2
Juniper Junos=18.2-r2-s1
Juniper Junos=18.2-r2-s2
Juniper Junos=18.2-r2-s3
Juniper Junos=18.2-r2-s4
Juniper Junos=18.2-r2-s5
Juniper Junos=18.2-r2-s6
Juniper Junos=18.2-r3
Juniper Junos=18.2-r3-s1
Juniper Junos=18.2-r3-s2
Juniper Junos=18.3
Juniper Junos=18.3-r1
Juniper Junos=18.3-r1-s1
Juniper Junos=18.3-r1-s2
Juniper Junos=18.3-r1-s3
Juniper Junos=18.3-r1-s4
Juniper Junos=18.3-r1-s5
Juniper Junos=18.3-r1-s6
Juniper Junos=18.3-r2
Juniper Junos=18.3-r2-s1
Juniper Junos=18.3-r2-s2
Juniper Junos=18.3-r2-s3
Juniper Junos=18.3-r3
Juniper Junos=18.3-r3-s1
Juniper Junos=18.4
Juniper Junos=18.4-r1
Juniper Junos=18.4-r1-s1
Juniper Junos=18.4-r1-s2
Juniper Junos=18.4-r1-s3
Juniper Junos=18.4-r1-s4
Juniper Junos=18.4-r1-s5
Juniper Junos=18.4-r2
Juniper Junos=18.4-r2-s1
Juniper Junos=18.4-r2-s2
Juniper Junos=18.4-r2-s3
Juniper Junos=18.4-r3
Juniper Junos=19.1
Juniper Junos=19.1-r1
Juniper Junos=19.1-r1-s1
Juniper Junos=19.1-r1-s2
Juniper Junos=19.1-r1-s3
Juniper Junos=19.1-r1-s4
Juniper Junos=19.1-r2
Juniper Junos=19.2
Juniper Junos=19.2-r1
Juniper Junos=19.2-r1-s1
Juniper Junos=19.2-r1-s2
Juniper Junos=19.2-r1-s3
Juniper Junos=19.3
Juniper Junos=19.3-r1
Juniper Junos=19.3-r1-s1
Juniper Junos=19.3-r2
Juniper Junos=19.3-r2-s1
Juniper Junos=19.3-r2-s2
Juniper Junos=19.3-r2-s3
Juniper Junos=19.3-r2-s4
Juniper Junos=19.4-r1
Juniper Junos=20.1-r1

Remedy

The following software releases have been updated to resolve this specific issue: Junos OS: 16.1R7-S7, 17.1R2-S12, 17.1R3-S2, 17.2R3-S4, 17.3R3-S8, 17.4R2-S10, 18.1R3-S10, 18.2R2-S7, 18.2R3-S3, 18.3R1-S7, 18.3R2-S4, 18.3R3-S2, 18.4R1-S6, 18.4R2-S4, 18.4R3-S1, 19.1R1-S5, 19.1R2-S1, 19.1R3, 19.2R1-S4, 19.2R2, 19.3R2-S5, 19.3R3, 19.4R1-S1, 19.4R2, 20.1R1-S1, 20.1R2, 20.2R1, and all subsequent releases.

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2021-0245?

    CVE-2021-0245 is rated as a high severity vulnerability that allows privilege escalation.

  • How do I fix CVE-2021-0245?

    To mitigate CVE-2021-0245, upgrade your Junos OS to a patched version as specified by Juniper Networks.

  • What devices are affected by CVE-2021-0245?

    CVE-2021-0245 affects Juniper Networks Junos OS running on various Junos Fusion satellite devices.

  • Can CVE-2021-0245 be exploited remotely?

    No, CVE-2021-0245 requires local access to the device for exploitation.

  • Is there a workaround for CVE-2021-0245?

    There are no effective workarounds for CVE-2021-0245; patching is the recommended solution.

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