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VAR-202104-0582

Vulnerability from variot - Updated: 2024-11-23 21:58

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. Juniper Networks Junos OS is a set of network operating system of Juniper Networks (Juniper Networks) dedicated to the company's hardware equipment. The operating system provides a secure programming interface and Junos SDK. There is a security vulnerability in Junos OS, and there is no relevant information about this vulnerability at present, please pay attention to CNNVD or manufacturer announcements at any time

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CVE-2021-0256 (GCVE-0-2021-0256)

Vulnerability from cvelistv5 – Published: 2021-04-22 19:37 – Updated: 2024-09-16 19:10

Title

Junos OS: mosquitto Local Privilege Escalation vulnerability in SUID binaries

Summary

Severity ?

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CWE

CWE-250 - Execution with Unnecessary Privileges

Assigner

juniper

References

URL

Tags

https://kb.juniper.net/JSA11175

x_refsource_MISC

Impacted products

	Vendor	Product	Version
	Juniper Networks	Junos OS	Affected: 17.3 , < 17.3R3-S12 (custom) Affected: 17.4 , < 17.4R3-S4 (custom) Affected: 18.1 , < 18.1R3-S12 (custom) Affected: 18.3 , < 18.3R3-S4 (custom) Affected: 19.1 , < 19.1R3-S4 (custom) Affected: 19.3 , < 19.3R3-S1, 19.3R3-S2 (custom) Affected: 19.4 , < 19.4R2-S3 (custom) Affected: 20.1 , < 20.1R2 (custom) Affected: 20.2 , < 20.2R1-S3, 20.2R2, 20.2R3 (custom)

Date Public ?

2021-04-14 00:00

Credits

Juniper SIRT would like to acknowledge and thank Hoàng Thạch Nguyễn (d4rkn3ss) of STAR Labs for responsibly reporting this vulnerability.

Show details on NVD website

JSON

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      ],
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          "value": "The following software releases have been updated to resolve this specific issue: Junos OS 17.3R3-S12, 17.4R3-S4, 18.1R3-S12, 19.1R3-S4, 19.3R3-S1, 19.3R3-S2, 19.4R2-S3, 20.1R2, 20.2R1-S3, 20.2R2, 20.2R3, 20.3R1, and all subsequent releases."
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      "title": "Junos OS: mosquitto Local Privilege Escalation vulnerability in SUID binaries",
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        }
      ],
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

VAR-202104-0582

CVE-2021-0256 (GCVE-0-2021-0256)

Tags

Sightings

Nomenclature