Ntp
CVE-2015-1799
MEDIUM
Severity by source
AV:A/AC:M/Au:N/C:N/I:P/A:P
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
AV:A/AC:M/Au:N/C:N/I:P/A:P
Lifecycle Timeline
1DescriptionCVE.org
The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 3.x and 4.x before 4.2.8p2 performs state-variable updates upon receiving certain invalid packets, which makes it easier for man-in-the-middle attackers to cause a denial of service (synchronization loss) by spoofing the source IP address of a peer.
AnalysisAI
The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 3.x and 4.x before 4.2.8p2 performs state-variable updates upon receiving certain invalid packets, which makes it. Rated medium severity (CVSS 4.3). No vendor patch available.
Technical ContextAI
This vulnerability is classified under CWE-17. The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 3.x and 4.x before 4.2.8p2 performs state-variable updates upon receiving certain invalid packets, which makes it easier for man-in-the-middle attackers to cause a denial of service (synchronization loss) by spoofing the source IP address of a peer. Affected products include: Ntp. Version information: before 4.2.8.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
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The read_mru_list function in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (crash) via a craf
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ntpd in NTP before 4.2.8p8 allows remote attackers to cause a denial of service (daemon crash) via a crypto-NAK packet.
util/ntp-keygen.c in ntp-keygen in NTP before 4.2.7p230 uses a weak RNG seed, which makes it easier for remote attackers
The config_auth function in ntpd in NTP before 4.2.7p11, when an auth key is not configured, improperly generates a key,
The datalen parameter in the refclock driver in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attacker
NTP before 4.2.8p6 and 4.3.0 before 4.3.90 allows a remote attackers to cause a denial of service (stack exhaustion) via
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Same weakness CWE-17 – DEPRECATED: Code
View allSame technique Denial Of Service
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External POC / Exploit Code
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