Vulnerability Name:

CVE-2022-22164 (CCN-217137)

Assigned:2021-12-21
Published:2022-01-12
Updated:2022-01-26
Summary:An Improper Initialization vulnerability in Juniper Networks Junos OS Evolved may cause a commit operation for disabling the telnet service to not take effect as expected, resulting in the telnet service staying enabled. When it is not intended to be operating on the device, an administrator can issue the following command to verify whether telnet is operating in the background: user@device > show system connections | grep :23 tcp 0 0 0.0.0.0:23 0.0.0.0:* LISTEN 20879/xinetd This issue affects: Juniper Networks Junos OS Evolved All versions prior to 20.4R2-S2-EVO; 21.1 version 21.1R1-EVO and later versions; 21.2 versions prior to 21.2R2-EVO.
CVSS v3 Severity:5.3 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
4.6 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/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): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/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): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
6.4 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-665
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2022-22164

Source: XF
Type: UNKNOWN
juniper-cve202222164-sec-bypass(217137)

Source: CCN
Type: Juniper Networks Security Bulletin JSA11272
Junos OS Evolved: Telnet service may be enabled when it is expected to be disabled. (CVE-2022-22164)

Source: CONFIRM
Type: Vendor Advisory
https://kb.juniper.net/JSA11272

Vulnerable Configuration:Configuration 1:
  • cpe:/o:juniper:junos_os_evolved:20.4:-:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos_os_evolved:20.4:r1:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos_os_evolved:20.4:r1-s1:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos_os_evolved:20.4:r1-s2:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos_os_evolved:20.4:r2:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos_os_evolved:20.4:r2-s1:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos_os_evolved:20.4:r2-s2:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos_os_evolved:20.4:r2-s3:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos_os_evolved:20.4:r3-s1:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos_os_evolved:21.1:-:*:*:*:*:*:*
  • OR cpe:/o:juniper:junos_os_evolved:21.2:-:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/o:juniper:junos_evolved:21.1:r1:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    juniper junos os evolved 20.4 -
    juniper junos os evolved 20.4 r1
    juniper junos os evolved 20.4 r1-s1
    juniper junos os evolved 20.4 r1-s2
    juniper junos os evolved 20.4 r2
    juniper junos os evolved 20.4 r2-s1
    juniper junos os evolved 20.4 r2-s2
    juniper junos os evolved 20.4 r2-s3
    juniper junos os evolved 20.4 r3-s1
    juniper junos os evolved 21.1 -
    juniper junos os evolved 21.2 -
    juniper junos evolved 21.1 r1