NetBSD up to 7.1 Stack Guard access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.5$5k-$25k0.00

Summaryinfo

A vulnerability has been found in NetBSD up to 7.1 and classified as critical. Impacted is an unknown function of the component Stack Guard. This manipulation causes access control. The identification of this vulnerability is CVE-2017-1000374. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in NetBSD up to 7.1 (Operating System). It has been declared as critical. Affected by this vulnerability is an unknown part of the component Stack Guard. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A flaw exists in NetBSD's implementation of the stack guard page that allows attackers to bypass it resulting in arbitrary code execution using certain setuid binaries. This affects NetBSD 7.1 and possibly earlier versions.

The bug was discovered 06/19/2017. The weakness was shared 06/19/2017 with Qualys (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2017-1000374 since 06/19/2017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 12/29/2020). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 370432 (NetBSD Advisory for kernel/ glibc Elevation of Privileges (Stack Clash)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 99176†). The entries VDB-102680 and VDB-102683 are related to this item. Be aware that VulDB is the high quality 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: 8.5
VulDB Meta Temp Score: 8.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
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
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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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/19/2017 🔍
06/19/2017 +0 days 🔍
06/19/2017 +0 days 🔍
06/19/2017 +0 days 🔍
06/19/2017 +0 days 🔍
06/20/2017 +1 days 🔍
12/29/2020 +1288 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Researcher: Qualys Research Labs
Organization: Qualys
Status: Not defined

CVE: CVE-2017-1000374 (🔍)
GCVE (CVE): GCVE-0-2017-1000374
GCVE (VulDB): GCVE-100-102679
SecurityFocus: 99176 - NetBSD CVE-2017-1000374 Security Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 06/20/2017 08:08
Updated: 12/29/2020 09:41
Changes: 06/20/2017 08:08 (60), 10/19/2019 09:21 (4), 12/29/2020 09:41 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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