Vulnerability CVE-2021-0248

Vulnerability Name:

CVE-2021-0248 (CCN-199956)

Assigned:

2020-10-27

Published:

2021-04-14

Updated:

2021-04-27

Summary:

This issue is not applicable to NFX NextGen Software. On NFX Series devices the use of Hard-coded Credentials in Juniper Networks Junos OS allows an attacker to take over any instance of an NFX deployment. This issue is only exploitable through administrative interfaces. This issue affects: Juniper Networks Junos OS versions prior to 19.1R1 on NFX Series. No other platforms besides NFX Series devices are affected.

CVSS v3 Severity:

10.0 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
8.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Changed
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

10.0 Critical (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
8.7 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Changed
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

CVSS v2 Severity:

7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

10.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

CWE-798

Vulnerability Consequences:

Bypass Security

References:

Source: MITRE
Type: CNA
CVE-2021-0248

Source: XF
Type: UNKNOWN
juniper-cve20210248-sec-bypass(199956)

Source: CCN
Type: Juniper Networks Security Bulletin JSA11141
NFX Series: Hard-coded credentials allows an attacker to take control of any instance through administrative interfaces. (CVE-2021-0248)

Source: MISC
Type: Vendor Advisory
https://kb.juniper.net/JSA11141

Vulnerable Configuration:

Configuration 1:

cpe:/o:juniper:junos:*:*:*:*:*:*:*:* (Version < 19.1)

OR cpe:/o:juniper:junos:19.1:-:*:*:*:*:*:*

AND

cpe:/h:juniper:nfx150:-:*:*:*:*:*:*:*

OR cpe:/h:juniper:nfx250:-:*:*:*:*:*:*:*

OR cpe:/h:juniper:nfx350:-:*:*:*:*:*:*:*

Denotes that component is vulnerable

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