Network Time Protocol Crypto-NAK Preemptible Association Denial of Service Vulnerability

SUMMARY An off-path attacker can cause a preemptible client association to be demobilized by sending a crypto NAK packet to a victim client with a spoofed source address of an existing associated peer. This is true even if authentication is enabled. Furthermore, if the attacker keeps sending cryp...

Network Time Protocol Ephemeral Association Time Spoofing Vulnerability

SUMMARY ntpd is vulnerable to Sybil attacks. A malicious authenticated peer can create arbitrarily-many ephemeral associations in order to win ntpd’s clock selection algorithm and modify a victim’s clock. TESTED VERSIONS NTP 4.2.8p3 NTP 4.2.8p4 NTPsec 3e160db8dc248a0bcb053b56a80167dc742d2b74 NTPs...

Network Time Protocol ntpd Reference Clock Impersonation Vulnerability

SUMMARY ntpd relies on the underlying operating system to protect it from requests that impersonate reference clocks. Because reference clocks are treated like other peers and stored in the same structure, any packet with a source ip address of a reference clock 127.127.1.1 for example that reach...

ntp -- multiple vulnerabilities

Network Time Foundation reports: NTF's NTP Project has been notified of the following low- and medium-severity vulnerabilities that are fixed in ntp-4.2.8p7, released on Tuesday, 26 April 2016: Bug 3020 / CVE-2016-1551: Refclock impersonation vulnerability, AKA: refclock-peering. Reported by Matt...

NTP configure() 函数缓冲区溢出漏洞

No description provided by source...

NTP ctl_putdata() 函数缓冲区溢出漏洞

No description provided by source...

CVE-2016-1384

The NTP implementation in Cisco IOS 15.1 and 15.5 and IOS XE 3.2 through 3.17 allows remote attackers to modify the system time via crafted packets, aka Bug ID CSCux46898...

Code injection

The NTP implementation in Cisco IOS 15.1 and 15.5 and IOS XE 3.2 through 3.17 allows remote attackers to modify the system time via crafted packets, aka Bug ID CSCux46898...

CVE-2016-1384

The NTP implementation in Cisco IOS 15.1 and 15.5 and IOS XE 3.2 through 3.17 allows remote attackers to modify the system time via crafted packets, aka Bug ID CSCux46898...

CVE-2016-1384

The CVE-2016-1384 entry describes a Cisco NTP Subsystem vulnerability in Cisco IOS (15.1/15.5) and IOS XE (3.2–3.17) where missing authorization checks on certain NTP packets allow an unauthenticated, remote attacker to modify the device time. This could impact timekeeping and trust; exploit stat...

Cisco IOS and Cisco IOS XE ntp Subsystem Unauthorized Access Vulnerability

A vulnerability in the ntp subsystem of Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to mobilize ntp associations. The vulnerability is due to missing authorization checks on certain ntp packets. An attacker could exploit this vulnerability by ingressing...

IOS9. 3 may be implemented remotely make their phone becomes brick-vulnerability warning-the black bar safety net

The so-called“1 9 7 0 bricked”problem refers to the iPhone or iPad's time is set to the 1 9 7 0 years 1 month 1 day, and then shutdown again, the device is“bricked”, unable to start until the battery is drained. This year 2 month, Apple gave confirmed, saying that the system time manually setting...

NTP crypto_recv() 函数缓冲区溢出漏洞

No description provided by source...

Meinberg NTP Time Server Vulnerabilities

OVERVIEW Independent researcher Ryan Wincey has identified a stack buffer overflow vulnerability and a privilege escalation vulnerability in Meinberg’s NTP Time Servers Interface. Meinberg has produced a new Version 6.20.004 to mitigate these vulnerabilities. The researcher has validated the...

Fedora 21 : ntp (2015-77bfbc1bcd)

The remote Fedora 21 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2015-77bfbc1bcd advisory. Security fix for CVE-2015-7704, CVE-2015-5300, CVE-2015-7692, CVE-2015-7871, CVE-2015-7702, CVE-2015-7691, CVE-2015-7852, CVE-2015-7701 ---- Securit...

Fedora 22 : ntp-4.2.6p5-36.fc22 (2016-34bc10a2c8)

Security fix for CVE-2015-7974, CVE-2015-8138, CVE-2015-7977, CVE-2015-7978, CVE-2015-7979, CVE-2015-8158 ---- Security fix for CVE-2015-7704, CVE-2015-5300, CVE-2015-7692, CVE-2015-7871, CVE-2015-7702, CVE-2015-7691, CVE-2015-7852, CVE-2015-7701 Note that Tenable Network Security has extracted t...

Fedora 23 : ntp-4.2.6p5-34.fc23 (2015-f5f5ec7b6b)

Security fix for CVE-2015-7704, CVE-2015-5300, CVE-2015-7692, CVE-2015-7871, CVE-2015-7702, CVE-2015-7691, CVE-2015-7852, CVE-2015-7701 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatical...

Fedora 23 : ntp-4.2.6p5-36.fc23 (2016-8bb1932088)

Security fix for CVE-2015-7974, CVE-2015-8138, CVE-2015-7977, CVE-2015-7978, CVE-2015-7979, CVE-2015-8158 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much...

AIX NTP Advisory : ntp_advisory5 (IV81129) (IV81130)

A version of the Network Time Protocol NTP package installed on the remote AIX host is affected by an integrity vulnerability due to an improperly implemented threshold limitation for the '-g' option. A man-in-the-middle attacker can exploit this to intercept the NTP traffic and return arbitrary...

SA113 : January 2016 NTP Security Vulnerabilities

SUMMARY Blue Coat products using affected versions of the NTP software distribution from ntp.org are susceptible to multiple vulnerabilities. A remote attacker may exploit these vulnerabilities to set the victim's system time to an arbitrary value or cause it to become out of sync. The attacker c...