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|CTI Interest Score|
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A vulnerability, which was classified as critical, has been found in Juniper Junos (Router Operating System) (unknown version). This issue affects some unknown processing of the component License-Check Daemon. The manipulation with an unknown input leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-77. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
A command injection vulnerability in the license-check daemon of Juniper Networks Junos OS that may allow a locally authenticated attacker with low privileges to execute commands with root privilege. license-check is a daemon used to manage licenses in Junos OS. To update licenses, a user executes the command 'request system license update' via the CLI. An attacker with access to this CLI command may be able to exploit the vulnerability. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S9; 17.4 versions prior to 17.4R2-S12, 17.4R3-S3; 18.1 versions prior to 18.1R3-S11; 18.2 versions prior to 18.2R3-S6; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R3-S6; 19.1 versions prior to 19.1R1-S6, 19.1R2-S2, 19.1R3-S3; 19.2 versions prior to 19.2R3-S1; 19.3 versions prior to 19.3R2-S5, 19.3R3; 19.4 versions prior to 19.4R2-S2, 19.4R3; 20.1 versions prior to 20.1R1-S4, 20.1R2; 20.2 versions prior to 20.2R1-S2, 20.2R2.
The weakness was released 01/16/2021 as JSA11108. The advisory is shared at kb.juniper.net. The identification of this vulnerability is CVE-2021-0218 since 10/27/2020. The exploitation is known to be easy. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/15/2021).
Upgrading eliminates this vulnerability.
CVSSv3VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 8.0
VulDB Base Score: 8.4
VulDB Temp Score: 8.0
VulDB Vector: 🔒
VulDB Reliability: 🔍
VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
NVD Base Score: 🔒
ExploitingClass: Privilege escalation
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒
Threat IntelligenceThreat: 🔍
0-Day Time: 🔒
Timeline10/27/2020 CVE assigned
01/16/2021 +81 days Advisory disclosed
01/16/2021 +0 days VulDB entry created
02/15/2021 +29 days VulDB last update
CVE: CVE-2021-0218 (🔒)
EntryCreated: 01/16/2021 09:13 AM
Updated: 02/15/2021 12:17 AM
Changes: (8) vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai source_cve_cna vulnerability_cvss2_nvd_basescore
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