Vulnerabilities > CVE-2017-10602 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Juniper Junos
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
A buffer overflow vulnerability in Junos OS CLI may allow a local authenticated user with read only privileges and access to Junos CLI, to execute code with root privileges. Affected releases are Juniper Networks Junos OS: 14.1X53 versions prior to 14.1X53-D46 on EX2200/VC, EX3200, EX3300/VC, EX4200, EX4300, EX4550/VC, EX4600, EX6200, EX8200/VC (XRE), QFX3500, QFX3600, QFX5100; 14.1X53 versions prior to 14.1X53-D130 on QFabric System; 14.2 versions prior to 14.2R4-S9, 14.2R6; 15.1 versions prior to 15.1F5, 15.1R3; 15.1X49 versions prior to 15.1X49-D40 on SRX Series; 15.1X53 versions prior to 15.1X53-D47 on NFX150, NFX250; 15.1X53 versions prior to 15.1X53-D65 on QFX10000 Series; 15.1X53 versions prior to 15.1X53-D233 on QFX5110, QFX5200.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| OS | 35 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Nessus
| NASL family | Junos Local Security Checks |
| NASL id | JUNIPER_JSA10803.NASL |
| description | According to its self-reported version number, the remote Juniper Junos device is affected by an unspecified buffer overflow condition in the CLI component that allows a local attacker who has read-only privileges to execute arbitrary code with root privileges. |
| last seen | 2020-06-01 |
| modified | 2020-06-02 |
| plugin id | 102078 |
| published | 2017-07-31 |
| reporter | This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof. |
| source | https://www.tenable.com/plugins/nessus/102078 |
| title | Juniper Junos CLI Local Privilege Escalation (JSA10803) |
| code | |