NULL Pointer Dereference in NTPsec Affects Authenticated Users
CVE-2019-6445

6.5MEDIUM

Key Information:

Vendor

Ntpsec

Status
Ntpsec
Vendor
CVE Published:
16 January 2019

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 14%

What is CVE-2019-6445?

NTPsec, prior to version 1.1.3, features a vulnerability where an authenticated attacker can exploit the 'ntp_control.c', leading to a NULL pointer dereference and resulting in the crash of the 'ntpd' process. This vulnerability poses a risk to the stability of NTP services, enabling potential denial of service through frequently triggered crashes.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2019-6445 - Proof of Concept

References

https://www.exploit-db.com/exploits/46177/
exploitx_refsource_EXPLOIT-DB
https://dumpco.re/blog/ntpsec-bugs
x_refsource_MISC
https://github.com/ntpsec/ntpsec/blob/NTPsec_1_1_3/NEWS
x_refsource_MISC

EPSS Score

14% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.