Juniper Junos sendmsg Local Privilege Escalation (JSA10797)

high Nessus Plugin ID 102072

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Synopsis

The remote device is affected by a privilege escalation vulnerability.

Description

According to its self-reported version number, the remote Juniper Junos device is affected by a heap-based buffer overflow condition in the sendmsg system call, specifically due to incorrect handling of arguments in the sockargs() function in sys/kern/uipc_syscalls.c. A local attacker can exploit this to overwrite large portions of the kernel memory, resulting in a denial of service condition or the execution of arbitrary code with elevated privileges.

Solution

Upgrade to the relevant Junos software release referenced in Juniper security advisory JSA10797.

Plugin Details

Severity: High

ID: 102072

File Name: juniper_jsa10797.nasl

Version: 1.3

Type: combined

Family: Junos Local Security Checks

Published: 7/31/2017

Updated: 7/12/2018

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:juniper:junos

Required KB Items: Host/Juniper/JUNOS/Version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/12/2017

Vulnerability Publication Date: 5/17/2016

Reference Information

CVE: CVE-2016-1887

BID: 90732

JSA: JSA10797

Detections

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