Vulnerability Details : CVE-2020-7982
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).
Products affected by CVE-2020-7982
- cpe:2.3:o:openwrt:openwrt:*:*:*:*:*:*:*:*
- cpe:2.3:o:openwrt:openwrt:19.07.0:-:*:*:*:*:*:*
- cpe:2.3:a:openwrt:lede:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-7982
0.36%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 69 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-7982
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
8.1
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.2
|
5.9
|
NIST |
CWE ids for CVE-2020-7982
-
The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.Assigned by: nvd@nist.gov (Primary)
-
The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-7982
-
https://openwrt.org/advisory/2020-01-31-1
OpenWrt Project: Security Advisory 2020-01-31-1 - Opkg susceptible to MITM (CVE-2020-7982)Vendor Advisory
-
https://blog.forallsecure.com/uncovering-openwrt-remote-code-execution-cve-2020-7982
Uncovering OpenWRT remote code execution (CVE-2020-7982)Exploit;Third Party Advisory
-
https://github.com/openwrt/openwrt/commits/master
Commits · openwrt/openwrt · GitHubPatch;Third Party Advisory
-
https://arstechnica.com/information-technology/2020/03/openwrt-is-vulnerable-to-attacks-that-execute-malicious-code/
OpenWRT code-execution bug puts millions of devices at risk | Ars TechnicaExploit;Press/Media Coverage;Third Party Advisory
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