CVE-2020-7982 Information

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).

CVSS Vector

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

Reference

https://arstechnica.com/information-technology/2020/03/openwrt-is-vulnerable-to-attacks-that-execute-malicious-code/ https://blog.forallsecure.com/uncovering-openwrt-remote-code-execution-cve-2020-7982 https://github.com/openwrt/openwrt/commits/master https://openwrt.org/advisory/2020-01-31-1

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.1