5.5
MEDIUM
CVE-2021-0256
Juniper Networks Junos OS Mosquitto Setuid Privilege Escalation
Description
A sensitive information disclosure vulnerability in the mosquitto message broker of Juniper Networks Junos OS may allow a locally authenticated user with shell access the ability to read portions of sensitive files, such as the master.passwd file. Since mosquitto is shipped with setuid permissions enabled and is owned by the root user, this vulnerability may allow a local privileged user the ability to run mosquitto with root privileges and access sensitive information stored on the local filesystem. This issue affects Juniper Networks Junos OS: 17.3 versions prior to 17.3R3-S12, 17.4 versions prior to 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.3 versions prior to 18.3R3-S4; 19.1 versions prior to 19.1R3-S4; 19.3 versions prior to 19.3R3-S1, 19.3R3-S2; 19.4 versions prior to 19.4R2-S3; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R1-S3, 20.2R2, 20.2R3.
INFO
Published Date :
April 22, 2021, 8:15 p.m.
Last Modified :
April 28, 2021, 10:37 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2021-0256 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-0256.
| URL | Resource |
|---|---|
| https://kb.juniper.net/JSA11175 | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
主流供应商的一些攻击性漏洞汇总
Updated: 2 weeks ago
805 stars
142 fork
142 watcher
Born at : Nov. 8, 2021, 2:12 a.m.
This repo has been linked 93 different CVEs too.
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-0256 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-0256 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Apr. 28, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:N/A:N) Changed Reference Type https://kb.juniper.net/JSA11175 No Types Assigned https://kb.juniper.net/JSA11175 Vendor Advisory Added CWE NIST CWE-269 Added CPE Configuration OR *cpe:2.3:o:juniper:junos:17.3:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r2-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3:-:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s10:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s11:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s9:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s10:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s11:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s12:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s9:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s10:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s11:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s9:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r1-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r3-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r3-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r3-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r1-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r2-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.4:r1-s1:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity
being observed over the next 30 days. Following chart shows the EPSS
score history of the vulnerability.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-0256 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-0256
weaknesses.
CAPEC-69: Target Programs with Elevated Privileges Target Programs with Elevated Privileges
CAPEC-104: Cross Zone Scripting Cross Zone Scripting
CAPEC-470: Expanding Control over the Operating System from the Database Expanding Control over the Operating System from the Database
CAPEC-58: Restful Privilege Elevation Restful Privilege Elevation
CAPEC-122: Privilege Abuse Privilege Abuse
CAPEC-233: Privilege Escalation Privilege Escalation
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05635
percentile
CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability