Vulnerability · Published Oct 13, 2020 · Assigned by zdi

CVE-2020-17407

Critical 9.8

In plain English

A critical-severity stack buffer overflow in Bullet-LTE from Microhard. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 6.8% (higher than 94% of all known vulnerabilities).

Severity (CVSS 3.0)9.8Critical

Exploit odds (30 days)6.8%top 6.0% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microhard Bullet-LTE prior to v1.2.0-r1112. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of authentication headers. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-10596.

Affected products (as reported)

Vendor	Product	Versions
Microhard	Bullet-LTE	prior to v1.2.0-r1112

Weakness: CWE-121 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://www.zerodayinitiative.com/advisories/ZDI-20-1206/ x_refsource_MISC