NTP Daemon up to 4.2.7 crypto_recv memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in NTP Daemon up to 4.2.7. It has been declared as critical. Affected is the function crypto_recv. Executing a manipulation can lead to memory corruption. This vulnerability is tracked as CVE-2014-9295. No exploit exists. This vulnerability is historically impactful due to its background and the reception it garnered. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in NTP Daemon up to 4.2.7 (Network Management Software). It has been declared as critical. This vulnerability affects the function crypto_recv. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 11/03/2014 by Stephen Roettger with Google Security Team as Sec 2667 as confirmed bug report (Bug Tracker). The advisory is shared for download at bugs.ntp.org. This vulnerability was named CVE-2014-9295 since 12/05/2014. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/01/2022). This vulnerability has a historic impact due to its background and reception. The advisory points out:

When Autokey Authentication is enabled (i.e. the ntp.conf file contains a crypto pw ... directive) a remote attacker can send a carefully crafted packet that can overflow a stack buffer and potentially allow malicious code to be executed with the privilege level of the ntpd process.

The vulnerability scanner Nessus provides a plugin with the ID 80217 (SuSE 11.3 Security Update : ntp (SAT Patch Number 10117)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 185097 (HP-UX Running NTP Multiple Vulnerabilities (HPSBUX03240)).

Upgrading to version 4.2.8 eliminates this vulnerability. It is possible to mitigate the problem by applying the configuration setting Disable Autokey Authentication. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (99578), Tenable (80217), SecurityFocus (BID 71761†), Secunia (SA62209†) and SecurityTracker (ID 1031409†). The entries VDB-68453, VDB-68454, VDB-68455 and VDB-68456 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 80217
Nessus Name: SuSE 11.3 Security Update : ntp (SAT Patch Number 10117)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 870850
OpenVAS Name: SuSE Update for ntp SUSE-SU-2014:1690-1 (ntp)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: NTP Daemon 4.2.8
Config: Disable Autokey Authentication

Timelineinfo

11/03/2014 🔍
11/03/2014 +0 days 🔍
12/05/2014 +32 days 🔍
12/18/2014 +13 days 🔍
12/19/2014 +1 days 🔍
12/19/2014 +0 days 🔍
12/20/2014 +1 days 🔍
12/22/2014 +2 days 🔍
12/23/2014 +1 days 🔍
01/13/2015 +21 days 🔍
03/01/2022 +2604 days 🔍

Sourcesinfo

Advisory: Sec 2667
Researcher: Stephen Roettger
Organization: Google Security Team
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-9295 (🔍)
GCVE (CVE): GCVE-0-2014-9295
GCVE (VulDB): GCVE-100-68452

OVAL: 🔍

CERT: 🔍
X-Force: 99578 - NTP ntpd buffer overflow, High Risk
SecurityFocus: 71761 - Network Time Protocol CVE-2014-9295 Multiple Stack Based Buffer Overflow Vulnerabilities
Secunia: 62209 - Cisco ACNS (Application and Content Networking System) NTP Multiple Buffer Overflow Vulner, Highly Critical
SecurityTracker: 1031409

See also: 🔍

Entryinfo

Created: 12/22/2014 08:19
Updated: 03/01/2022 13:52
Changes: 12/22/2014 08:19 (92), 05/02/2019 11:52 (2), 03/01/2022 13:52 (3)
Complete: 🔍
Cache ID: 216::103

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