Tuxfamily Chrony up to 1.28 sed Command cmdmon.c handle_client_accesses information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Tuxfamily Chrony up to 1.28 and classified as problematic. Affected by this issue is the function handle_client_accesses of the file cmdmon.c of the component sed Command. Executing a manipulation can lead to information disclosure. This vulnerability is registered as CVE-2012-4503. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Tuxfamily Chrony up to 1.28. This vulnerability affects the function handle_client_accesses of the file cmdmon.c of the component sed Command. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. CVE summarizes:

cmdmon.c in Chrony before 1.29 allows remote attackers to obtain potentially sensitive information from stack memory via vectors related to (1) an invalid subnet in a RPY_SUBNETS_ACCESSED command to the handle_subnets_accessed function or (2) a RPY_CLIENT_ACCESSES command to the handle_client_accesses function when client logging is disabled, which causes uninitialized data to be included in a reply.

The weakness was published 11/05/2013 as not defined mailinglist post (oss-sec). The advisory is shared for download at seclists.org. This vulnerability was named CVE-2012-4503. 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 MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability scanner Nessus provides a plugin with the ID 69960 (Debian DSA-2760-1 : chrony - several vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks.

Upgrading to version 1.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (86341), Tenable (69960), SecurityFocus (BID 61703†) and Vulnerability Center (SBV-41135†). Similar entry is available at VDB-65439. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 69960
Nessus Name: Debian DSA-2760-1 : chrony - several vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 892760
OpenVAS Name: Debian Security Advisory DSA 2760-1 (chrony - several vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Chrony 1.0
Patch: c6fdeeb6bb0b17dc28c19ae492c4a1c498e54ea3

Timelineinfo

08/21/2012 🔍
08/08/2013 +352 days 🔍
08/20/2013 +12 days 🔍
11/05/2013 +77 days 🔍
11/05/2013 +0 days 🔍
03/24/2015 +504 days 🔍
01/10/2022 +2484 days 🔍

Sourcesinfo

Advisory: DSA-2760
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-4503 (🔍)
GCVE (CVE): GCVE-0-2012-4503
GCVE (VulDB): GCVE-100-65440

OVAL: 🔍

X-Force: 86341
SecurityFocus: 61703
Vulnerability Center: 41135 - Chrony 1.27 -1.28 Remote DoS Vulnerability via Authentication Request (CVE-2012-4503), Medium

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 01/10/2022 09:59
Changes: 03/24/2015 15:54 (67), 05/09/2017 09:05 (2), 01/10/2022 09:54 (6), 01/10/2022 09:55 (1), 01/10/2022 09:59 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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