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MitreCVE-2017-1000372

HistoryJun 19, 2017 - 4:29 p.m.

CVE-2017-1000372

2017-06-1916:29:00

mitre

web.nvd.nist.gov

openbsd

stack guard page

bypass

arbitrary code execution

cve-2017-1000372

nvd

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.7

Confidence

High

EPSS

0.007

Percentile

80.5%

JSON

A flaw exists in OpenBSD’s implementation of the stack guard page that allows attackers to bypass it resulting in arbitrary code execution using setuid binaries such as /usr/bin/at. This affects OpenBSD 6.1 and possibly earlier versions.

Affected configurations

Nvd

Node

openbsdopenbsdRange≤6.1

VendorProductVersionCPE
openbsdopenbsd*cpe:2.3:o:openbsd:openbsd:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
openbsd	openbsd	*	cpe:2.3:o:openbsd:openbsd::::::::

References

www.securityfocus.com/bid/99172

ftp.openbsd.org/pub/OpenBSD/patches/6.1/common/008_exec_subr.patch.sig

www.qualys.com/2017/06/19/stack-clash/stack-clash.txt

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.7

Confidence

High

EPSS

0.007

Percentile

80.5%

JSON

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