CVE-2017-17450

net/netfilter/xt_osf.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for add_callback and remove_callback operations, which allows local users to bypass intended access restrictions because the xt_osf_fingers data structure is shared across all net namespaces.

CVSS v3.0 7.8 HIGH
CVSS v2.0 4.6 MEDIUM

7.8^/10

CVSS v3.0 : HIGH

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

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://lkml.org/lkml/2017/12/5/982	Third Party Advisory
http://www.securityfocus.com/bid/102110	Third Party Advisory VDB Entry
https://www.debian.org/security/2017/dsa-4073
http://lists.opensuse.org/opensuse-security-announce/2018-01/msg00007.html
https://www.debian.org/security/2018/dsa-4082
https://usn.ubuntu.com/3583-2/
https://usn.ubuntu.com/3583-1/
https://usn.ubuntu.com/3617-2/
https://usn.ubuntu.com/3617-1/
https://usn.ubuntu.com/3619-1/
https://usn.ubuntu.com/3617-3/
https://usn.ubuntu.com/3619-2/
https://usn.ubuntu.com/3632-1/

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Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Information

Published : 2017-12-06 16:29

Updated : 2019-10-02 17:03

NVD link : CVE-2017-17450

Mitre link : CVE-2017-17450

JSON object : View

CWE

CWE-862

Missing Authorization

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Products Affected

linux

linux_kernel

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