CVE-2019-6442 Information

Description

An issue was discovered in NTPsec before 1.1.3. An authenticated attacker can write one byte out of bounds in ntpd via a malformed config request related to config_remotely in ntp_config.c yyparse in ntp_parser.tab.c and yyerror in ntp_parser.y.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Reference

https://dumpco.re/blog/ntpsec-bugs https://dumpco.re/bugs/ntpsec-authed-oobwrite https://github.com/ntpsec/ntpsec/blob/NTPsec_1_1_3/NEWS https://www.exploit-db.com/exploits/46178/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5