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CVE-2016-3707

8.1 · HIGH

The icmp_check_sysrq function in net/ipv4/icmp.c in the kernel.org projects/rt patches for the Linux kernel, as used in the kernel-rt package before 3.10.0-327.22.1 in Red Hat Enterprise Linux for…

Published Jun 27, 2016CWE-284EPSS 3.39%

Overview

CVE-2016-3707 is a high-severity vulnerability. It was published on June 27, 2016 and has a CVSS 3.0 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.0 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The icmp_check_sysrq function in net/ipv4/icmp.c in the kernel.org projects/rt patches for the Linux kernel, as used in the kernel-rt package before 3.10.0-327.22.1 in Red Hat Enterprise Linux for Real Time 7 and other products, allows remote attackers to execute SysRq commands via crafted ICMP Echo Request packets, as demonstrated by a brute-force attack to discover a cookie, or an attack that occurs after reading the local icmp_echo_sysrq file.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reflists.opensuse.org/opensuse-security-announce/2016-07/msg00005.htmlReflists.opensuse.org/opensuse-security-announce/2016-08/msg00000.htmlReflists.opensuse.org/opensuse-security-announce/2016-08/msg00007.htmlRefwww.openwall.com/lists/oss-security/2016/05/17/1Refaccess.redhat.com/errata/RHSA-2016:1301Refaccess.redhat.com/errata/RHSA-2016:1341Refbugzilla.redhat.com/show_bug.cgi?id=1327484Reflists.opensuse.org/opensuse-security-announce/2016-07/msg00005.htmlReflists.opensuse.org/opensuse-security-announce/2016-08/msg00000.htmlReflists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html

How CyberStrike helps

Frequently asked questions

What is CVE-2016-3707?

CVE-2016-3707 is a high-severity vulnerability. It was published on June 27, 2016 and has a CVSS 3.0 base score of 8.1 (HIGH).

How severe is CVE-2016-3707?

This vulnerability has a CVSS 3.0 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2016-3707?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2016-3707?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2016-3707 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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