Thursday, March 28, 2024

NTP patch for Dos exploit released

NTP can be exploited to generate huge volumes of junk traffic which leads to DOS attack. Update your NTP service to ntp-4.2.8p9 which patches this Vulnerability.

What is NTP?

Network Time Protocol (NTP) is a networking protocol for clock synchronization between computer systems over packet-switched, variable-latency data networks.  NTP is one of the oldest Internet protocols in current use.

NTP users are strongly recommended to take immediate action to ensure that their NTP servers are not being vulnerable DDoS (distributed denial-of-service) attacks.

ntpdoz
NTF’s NTP Project -4.2.8p9, addresses:
  • 1 HIGH severity vulnerability that only affects Windows
  • 2 MEDIUM severity vulnerabilities
  • 2 MEDIUM/LOW severity vulnerabilities
  • 5 LOW severity vulnerabilities

For more details on Vulnerability Announcement refer NTP security advisory.NTP.org’s ntpd prior to version 4.2.8p9 contains multiple denial of service vulnerabilities.

CWE-476: NULL Pointer Dereference – CVE-2016-9311
CWE-400: Uncontrolled Resource Consumption (‘Resource Exhaustion’) – CVE-2016-9310
CWE-400: Uncontrolled Resource Consumption (‘Resource Exhaustion’) – CVE-2016-7427
CWE-400: Uncontrolled Resource Consumption (‘Resource Exhaustion’) – CVE-2016-7428
CWE-410: Insufficient Resource Pool – CVE-2016-9312
CWE-20: Improper Input Validation – CVE-2016-7431
CWE-20: Improper Input Validation – CVE-2016-7434
CWE-605: Multiple Binds to the Same Port – CVE-2016-7429
CWE-410: Insufficient Resource Pool – CVE-2016-7426
CWE-682: Incorrect Calculation – CVE-2016-7433

For more information, please see NTP.org’s security advisory.The CVSS score below is based on CVE-2016-9312.

Impact

A remote unauthenticated attacker may be able to perform a denial of service on ntpd.

Solution

Implement BCP-38

Use “restrict default noquery …” in your ntp.conf file. Only allow mode 6 queries from trusted networks and hosts.

Apply an update

Upgrade to 4.2.8p9, or later, from the NTP Project Download Page or the NTP Public Services Project Download Page.

Monitor ntpd

Properly monitor your ntpd instances, and auto-restart ntpd (without -g) if it stops running.

Website

Latest articles

2 Chrome Zero-Days Exploited at Pwn2Own 2024: Patch Now

Google has announced a crucial update to its Chrome browser, addressing several vulnerabilities, including...

The Moon Malware Hacked 6,000 ASUS Routers in 72hours to Use for Proxy

Black Lotus Labs discovered a multi-year campaign by TheMoon malware targeting vulnerable routers and...

Hackers Actively Exploiting Ray AI Framework Flaw to Hack Thousands of Servers

A critical vulnerability in Ray, an open-source AI framework that is widely utilized across...

Chinese Hackers Attacking Southeast Asian Nations With Malware Packages

Cybersecurity researchers at Unit 42 have uncovered a sophisticated cyberespionage campaign orchestrated by two...

CISA Warns of Hackers Exploiting Microsoft SharePoint Server Vulnerability

Cybersecurity and Infrastructure Security Agency (CISA) has warned about a critical vulnerability in Microsoft...

Microsoft Expands Edge Bounty Program to Include WebView2!

Microsoft announced that Microsoft Edge WebView2 eligibility and specific out-of-scope information are now included...

Beware of Free Android VPN Apps that Turn Your Device into Proxies

Cybersecurity experts have uncovered a cluster of Android VPN applications that covertly transform user...
Guru baran
Guru baranhttps://gbhackers.com
Gurubaran is a co-founder of Cyber Security News and GBHackers On Security. He has 10+ years of experience as a Security Consultant, Editor, and Analyst in cybersecurity, technology, and communications.

Mitigating Vulnerability Types & 0-day Threats

Mitigating Vulnerability & 0-day Threats

Alert Fatigue that helps no one as security teams need to triage 100s of vulnerabilities.

  • The problem of vulnerability fatigue today
  • Difference between CVSS-specific vulnerability vs risk-based vulnerability
  • Evaluating vulnerabilities based on the business impact/risk
  • Automation to reduce alert fatigue and enhance security posture significantly

Related Articles