CVE-2020-7982
OpenWrt/LEDE Opkg Signed Repository Index Parsing Vulnerability
Description
An issue was discovered in OpenWrt 18.06.0 to 18.06.6 and 19.07.0, and LEDE 17.01.0 to 17.01.7. A bug in the fork of the opkg package manager before 2020-01-25 prevents correct parsing of embedded checksums in the signed repository index, allowing a man-in-the-middle attacker to inject arbitrary package payloads (which are installed without verification).
INFO
Published Date :
March 16, 2020, 10:15 p.m.
Last Modified :
Nov. 21, 2024, 5:38 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] |
Public PoC/Exploit Available at Github
CVE-2020-7982 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-2020-7982.
| URL | Resource |
|---|---|
| https://arstechnica.com/information-technology/2020/03/openwrt-is-vulnerable-to-attacks-that-execute-malicious-code/ | Exploit Press/Media Coverage Third Party Advisory |
| https://blog.forallsecure.com/uncovering-openwrt-remote-code-execution-cve-2020-7982 | Exploit Third Party Advisory |
| https://github.com/openwrt/openwrt/commits/master | Patch Third Party Advisory |
| https://openwrt.org/advisory/2020-01-31-1 | Vendor Advisory |
| https://arstechnica.com/information-technology/2020/03/openwrt-is-vulnerable-to-attacks-that-execute-malicious-code/ | Exploit Press/Media Coverage Third Party Advisory |
| https://blog.forallsecure.com/uncovering-openwrt-remote-code-execution-cve-2020-7982 | Exploit Third Party Advisory |
| https://github.com/openwrt/openwrt/commits/master | Patch Third Party Advisory |
| https://openwrt.org/advisory/2020-01-31-1 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-7982 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-2020-7982
weaknesses.
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).
Damn Vulnerable Router Firmware(DVRF)
Makefile Awk Shell C Assembly M4 CMake Perl C++ Lex
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-7982 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-7982 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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://arstechnica.com/information-technology/2020/03/openwrt-is-vulnerable-to-attacks-that-execute-malicious-code/ Added Reference https://blog.forallsecure.com/uncovering-openwrt-remote-code-execution-cve-2020-7982 Added Reference https://github.com/openwrt/openwrt/commits/master Added Reference https://openwrt.org/advisory/2020-01-31-1 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CPE Deprecation Remap by [email protected]
May. 24, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:openwrt:openwrt:*:*:*:*:*:*:*:* versions from (including) 18.06.0 from (excluding) 18.06.7 OR *cpe:2.3:o:openwrt:openwrt:*:*:*:*:*:*:*:* versions from (including) 18.06.0 from (excluding) 18.06.7 -
CPE Deprecation Remap by [email protected]
May. 24, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:openwrt:openwrt:19.07.0:-:*:*:*:*:*:* OR *cpe:2.3:o:openwrt:openwrt:19.07.0:-:*:*:*:*:*:* -
Modified Analysis by [email protected]
Apr. 18, 2022
Action Type Old Value New Value Changed Reference Type https://arstechnica.com/information-technology/2020/03/openwrt-is-vulnerable-to-attacks-that-execute-malicious-code/ No Types Assigned https://arstechnica.com/information-technology/2020/03/openwrt-is-vulnerable-to-attacks-that-execute-malicious-code/ Exploit, Press/Media Coverage, Third Party Advisory Changed Reference Type https://blog.forallsecure.com/uncovering-openwrt-remote-code-execution-cve-2020-7982 No Types Assigned https://blog.forallsecure.com/uncovering-openwrt-remote-code-execution-cve-2020-7982 Exploit, Third Party Advisory -
CWE Remap by [email protected]
Jul. 21, 2021
Action Type Old Value New Value Changed CWE CWE-74 CWE-345 CWE-754 -
CVE Modified by [email protected]
Apr. 01, 2020
Action Type Old Value New Value Added Reference https://arstechnica.com/information-technology/2020/03/openwrt-is-vulnerable-to-attacks-that-execute-malicious-code/ [No Types Assigned] -
CVE Modified by [email protected]
Mar. 25, 2020
Action Type Old Value New Value Added Reference https://blog.forallsecure.com/uncovering-openwrt-remote-code-execution-cve-2020-7982 [No Types Assigned] -
Initial Analysis by [email protected]
Mar. 23, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/openwrt/openwrt/commits/master No Types Assigned https://github.com/openwrt/openwrt/commits/master Patch, Third Party Advisory Changed Reference Type https://openwrt.org/advisory/2020-01-31-1 No Types Assigned https://openwrt.org/advisory/2020-01-31-1 Vendor Advisory Added CWE NIST CWE-74 Added CPE Configuration OR *cpe:2.3:a:openwrt:lede:*:*:*:*:*:*:*:* versions from (including) 17.01.0 up to (including) 17.01.7 *cpe:2.3:a:openwrt:openwrt:*:*:*:*:*:*:*:* versions from (including) 18.06.0 up to (excluding) 18.06.7 *cpe:2.3:a:openwrt:openwrt:19.07.0:-:*:*:*:*:*:*
Vulnerability Scoring Details
Base CVSS Score: 8.1
Base CVSS Score: 6.8
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
4.37 }} 1.46%
score
0.88529
percentile