rsync up to 3.1.3-development Checksum access control

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 (≈)
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CTI Interest Score
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8.4$0-$5k0.00

A vulnerability was found in rsync up to 3.1.3-development (File Transfer Software). It has been classified as critical. This affects an unknown code block of the component Checksum Handler. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

rsync 3.1.3-development before 2017-10-24, as used in the xlucas svfs rsync fork and other products, mishandles archaic checksums, which makes it easier for remote attackers to bypass intended access restrictions.

The bug was discovered 10/29/2017. The weakness was released 10/29/2017 as confirmed git commit (GIT Repository). It is possible to read the advisory at git.samba.org. This vulnerability is uniquely identified as CVE-2017-15994 since 10/29/2017. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Applying a patch is able to eliminate this problem. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
ATT&CK: T1068

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 7b8a4ecd6ff9cdf4e5d3850ebf822f1e989255b3

Timelineinfo

10/24/2017 🔍
10/29/2017 +5 days 🔍
10/29/2017 +0 days 🔍
10/29/2017 +0 days 🔍
10/29/2017 +0 days 🔍
10/29/2017 +0 days 🔍
01/05/2023 +1894 days 🔍

Sourcesinfo

Advisory: git.samba.org
Status: Confirmed

CVE: CVE-2017-15994 (🔍)

Entryinfo

Created: 10/29/2017 13:04
Updated: 01/05/2023 11:16
Changes: 10/29/2017 13:04 (58), 12/17/2019 19:15 (1), 01/05/2023 11:16 (5)
Complete: 🔍

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