CVE-2018-20679
BusyBox Out-of-Bounds Read DHCP Option Vulnerability
Description
An issue was discovered in BusyBox before 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP server, client, and relay) allows a remote attacker to leak sensitive information from the stack by sending a crafted DHCP message. This is related to verification in udhcp_get_option() in networking/udhcp/common.c that 4-byte options are indeed 4 bytes.
INFO
Published Date :
Jan. 9, 2019, 4:29 p.m.
Last Modified :
Sept. 4, 2019, 11:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
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-2018-20679.
| URL | Resource |
|---|---|
| http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html | |
| http://seclists.org/fulldisclosure/2019/Sep/7 | |
| https://bugs.busybox.net/show_bug.cgi?id=11506 | Issue Tracking Exploit Third Party Advisory |
| https://busybox.net/news.html | Release Notes Third Party Advisory |
| https://git.busybox.net/busybox/commit/?id=6d3b4bb24da9a07c263f3c1acf8df85382ff562c | Patch Third Party Advisory |
| https://seclists.org/bugtraq/2019/Sep/7 | |
| https://usn.ubuntu.com/3935-1/ | Third Party 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-20679 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-20679 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 -
CVE Modified by [email protected]
Sep. 05, 2019
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html [No Types Assigned] -
CVE Modified by [email protected]
Sep. 05, 2019
Action Type Old Value New Value Added Reference https://seclists.org/bugtraq/2019/Sep/7 [No Types Assigned] -
CVE Modified by [email protected]
Sep. 04, 2019
Action Type Old Value New Value Added Reference http://seclists.org/fulldisclosure/2019/Sep/7 [No Types Assigned] -
Modified Analysis by [email protected]
Apr. 15, 2019
Action Type Old Value New Value Changed Reference Type https://busybox.net/news.html Release Notes https://busybox.net/news.html Release Notes, Third Party Advisory Changed Reference Type https://usn.ubuntu.com/3935-1/ No Types Assigned https://usn.ubuntu.com/3935-1/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 03, 2019
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/3935-1/ [No Types Assigned] -
Initial Analysis by [email protected]
Jan. 16, 2019
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:N/A:N) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://busybox.net/news.html No Types Assigned https://busybox.net/news.html Release Notes Changed Reference Type https://bugs.busybox.net/show_bug.cgi?id=11506 No Types Assigned https://bugs.busybox.net/show_bug.cgi?id=11506 Exploit, Issue Tracking, Third Party Advisory Changed Reference Type https://git.busybox.net/busybox/commit/?id=6d3b4bb24da9a07c263f3c1acf8df85382ff562c No Types Assigned https://git.busybox.net/busybox/commit/?id=6d3b4bb24da9a07c263f3c1acf8df85382ff562c Patch, Third Party Advisory Added CWE CWE-125 Added CPE Configuration OR *cpe:2.3:a:busybox:busybox:*:*:*:*:*:*:*:* versions up to (excluding) 1.30.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-20679 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-2018-20679
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.57 }} 0.00%
score
0.77793
percentile