rsync up to 3.1.0 authenticate.c check_secret input validation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.6$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in rsync. This issue affects the function check_secret of the file authenticate.c. Performing a manipulation results in input validation. This vulnerability is reported as CVE-2014-2855. No exploit exists. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in rsync (File Transfer Software). This affects the function check_secret of the file authenticate.c. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. The summary by CVE is:

The check_secret function in authenticate.c in rsync 3.1.0 and earlier allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a user name which does not exist in the secrets file.

The weakness was disclosed 04/13/2014 by Wayne Davison (ryan) as Avoid infinite wait reading secrets file. as confirmed git commit (GIT Repository). The advisory is shared at git.samba.org. The public release has been coordinated in cooperation with the project team. This vulnerability is uniquely identified as CVE-2014-2855 since 04/15/2014. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 75342 (openSUSE Security Update : Rsync (openSUSE-SU-2014:0595-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 166967 (OpenSuSE Security Update for Rsync (openSUSE-SU-2014:0595-1)).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.samba.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (92659), Tenable (75342), SecurityFocus (BID 66929†), Secunia (SA57948†) and Vulnerability Center (SBV-44296†). Further details are available at bugs.launchpad.net. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 75342
Nessus Name: openSUSE Security Update : Rsync (openSUSE-SU-2014:0595-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 804554
OpenVAS Name: Fedora Update for rsync FEDORA-2014-5315
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: git.samba.org

Timelineinfo

04/13/2014 🔍
04/13/2014 +0 days 🔍
04/13/2014 +0 days 🔍
04/13/2014 +0 days 🔍
04/15/2014 +2 days 🔍
04/18/2014 +3 days 🔍
04/22/2014 +4 days 🔍
04/23/2014 +1 days 🔍
04/29/2014 +6 days 🔍
06/13/2014 +45 days 🔍
12/17/2024 +3840 days 🔍

Sourcesinfo

Advisory: Avoid infinite wait reading secrets file.
Researcher: Wayne Davison (ryan)
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2014-2855 (🔍)
GCVE (CVE): GCVE-0-2014-2855
GCVE (VulDB): GCVE-100-13017

OVAL: 🔍

X-Force: 92659 - rysnc check_secret() denial of service, Medium Risk
SecurityFocus: 66929 - Rsync CVE-2014-2855 Infinite Loop Denial of Service Vulnerability
Secunia: 57948 - rsync Infinite Loop Denial of Service Vulnerability, Less Critical
Vulnerability Center: 44296 - Samba Rsync 3.1.0 and Earlier Remote DoS via Check_secret Function in Authenticate.c, Medium

Misc.: 🔍

Entryinfo

Created: 04/22/2014 11:33
Updated: 12/17/2024 11:10
Changes: 04/22/2014 11:33 (81), 05/26/2017 04:03 (5), 06/17/2021 13:55 (3), 12/17/2024 11:10 (18)
Complete: 🔍
Cache ID: 216:0E9:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!