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CVE-2014-6271 Detail

Description

GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution, aka "ShellShock." NOTE: the original fix for this issue was incorrect; CVE-2014-7169 has been assigned to cover the vulnerability that is still present after the incorrect fix.


Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  9.8 CRITICAL
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
http://advisories.mageia.org/MGASA-2014-0388.html Third Party Advisory 
http://archives.neohapsis.com/archives/bugtraq/2014-10/0101.html Third Party Advisory 
http://jvn.jp/en/jp/JVN55667175/index.html Vendor Advisory 
http://jvndb.jvn.jp/jvndb/JVNDB-2014-000126 Third Party Advisory  VDB Entry  Vendor Advisory 
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10673 Third Party Advisory 
http://lcamtuf.blogspot.com/2014/09/quick-notes-about-bash-bug-its-impact.html Third Party Advisory 
http://linux.oracle.com/errata/ELSA-2014-1293.html Third Party Advisory 
http://linux.oracle.com/errata/ELSA-2014-1294.html Third Party Advisory 
http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00028.html Third Party Advisory 
http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00029.html Third Party Advisory 
http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00034.html Third Party Advisory 
http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00037.html Third Party Advisory 
http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00040.html Third Party Advisory 
http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00044.html Third Party Advisory 
http://lists.opensuse.org/opensuse-security-announce/2014-09/msg00049.html Third Party Advisory 
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00004.html Third Party Advisory 
http://lists.opensuse.org/opensuse-updates/2014-10/msg00023.html Third Party Advisory 
http://lists.opensuse.org/opensuse-updates/2014-10/msg00025.html Third Party Advisory 
http://marc.info/?l=bugtraq&m=141216207813411&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141216668515282&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141235957116749&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141319209015420&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141330425327438&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141330468527613&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141345648114150&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141383026420882&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141383081521087&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141383138121313&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141383196021590&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141383244821813&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141383304022067&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141383353622268&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141383465822787&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141450491804793&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141576728022234&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141577137423233&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141577241923505&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141577297623641&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141585637922673&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141694386919794&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=141879528318582&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=142113462216480&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=142118135300698&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=142358026505815&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=142358078406056&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=142546741516006&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=142719845423222&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=142721162228379&w=2 Third Party Advisory 
http://marc.info/?l=bugtraq&m=142805027510172&w=2 Third Party Advisory 
http://packetstormsecurity.com/files/128517/VMware-Security-Advisory-2014-0010.html Third Party Advisory  VDB Entry 
http://packetstormsecurity.com/files/128567/CA-Technologies-GNU-Bash-Shellshock.html Third Party Advisory  VDB Entry 
http://packetstormsecurity.com/files/128573/Apache-mod_cgi-Remote-Command-Execution.html Third Party Advisory  VDB Entry 
http://packetstormsecurity.com/files/137376/IPFire-Bash-Environment-Variable-Injection-Shellshock.html Exploit  Third Party Advisory  VDB Entry 
http://packetstormsecurity.com/files/161107/SonicWall-SSL-VPN-Shellshock-Remote-Code-Execution.html Third Party Advisory  VDB Entry 
http://rhn.redhat.com/errata/RHSA-2014-1293.html Third Party Advisory 
http://rhn.redhat.com/errata/RHSA-2014-1294.html Third Party Advisory 
http://rhn.redhat.com/errata/RHSA-2014-1295.html Third Party Advisory 
http://rhn.redhat.com/errata/RHSA-2014-1354.html Third Party Advisory 
http://seclists.org/fulldisclosure/2014/Oct/0 Mailing List  Third Party Advisory 
http://secunia.com/advisories/59272 Third Party Advisory 
http://secunia.com/advisories/61542 Third Party Advisory 
http://secunia.com/advisories/61547 Third Party Advisory 
http://secunia.com/advisories/62228 Third Party Advisory 
http://support.apple.com/kb/HT6495 Third Party Advisory 
http://support.novell.com/security/cve/CVE-2014-6271.html Third Party Advisory 
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140926-bash Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=isg3T1021272 Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=isg3T1021279 Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=isg3T1021361 Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004879 Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004897 Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004898 Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=ssg1S1004915 Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=swg21685541 Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=swg21685604 Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=swg21685733 Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=swg21685749 Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=swg21685914 Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=swg21686084 Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=swg21686131 Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=swg21686246 Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=swg21686445 Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=swg21686447 Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=swg21686479 Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=swg21686494 Third Party Advisory 
http://www-01.ibm.com/support/docview.wss?uid=swg21687079 Third Party Advisory 
http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5096315 Third Party Advisory 
http://www.debian.org/security/2014/dsa-3032 Third Party Advisory 
http://www.kb.cert.org/vuls/id/252743 Third Party Advisory  US Government Resource 
http://www.mandriva.com/security/advisories?name=MDVSA-2015:164 Third Party Advisory 
http://www.novell.com/support/kb/doc.php?id=7015701 Third Party Advisory 
http://www.novell.com/support/kb/doc.php?id=7015721 Third Party Advisory 
http://www.oracle.com/technetwork/topics/security/bashcve-2014-7169-2317675.html Third Party Advisory 
http://www.qnap.com/i/en/support/con_show.php?cid=61 Third Party Advisory 
http://www.securityfocus.com/archive/1/533593/100/0/threaded Third Party Advisory  VDB Entry 
http://www.securityfocus.com/bid/70103 Third Party Advisory  VDB Entry 
http://www.ubuntu.com/usn/USN-2362-1 Third Party Advisory 
http://www.us-cert.gov/ncas/alerts/TA14-268A Third Party Advisory  US Government Resource 
http://www.vmware.com/security/advisories/VMSA-2014-0010.html Third Party Advisory 
http://www.websense.com/support/article/kbarticle/Vulnerabilities-resolved-in-TRITON-APX-Version-8-0 Third Party Advisory 
https://access.redhat.com/articles/1200223 Third Party Advisory 
https://access.redhat.com/node/1200223 Third Party Advisory 
https://bugzilla.redhat.com/show_bug.cgi?id=1141597 Issue Tracking  Patch  Third Party Advisory 
https://help.ecostruxureit.com/display/public/UADCO8x/StruxureWare+Data+Center+Operation+Software+Vulnerability+Fixes Third Party Advisory 
https://kb.bluecoat.com/index?page=content&id=SA82 Third Party Advisory 
https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10648 Third Party Advisory 
https://kc.mcafee.com/corporate/index?page=content&id=SB10085 Third Party Advisory 
https://securityblog.redhat.com/2014/09/24/bash-specially-crafted-environment-variables-code-injection-attack/ Exploit  Third Party Advisory 
https://support.apple.com/kb/HT6535 Third Party Advisory 
https://support.citrix.com/article/CTX200217 Third Party Advisory 
https://support.citrix.com/article/CTX200223 Third Party Advisory 
https://support.f5.com/kb/en-us/solutions/public/15000/600/sol15629.html Third Party Advisory 
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c04497075 Third Party Advisory 
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c04518183 Third Party Advisory 
https://supportcenter.checkpoint.com/supportcenter/portal?eventSubmit_doGoviewsolutiondetails=&solutionid=sk102673&src=securityAlerts Third Party Advisory 
https://www.arista.com/en/support/advisories-notices/security-advisories/1008-security-advisory-0006
https://www.exploit-db.com/exploits/34879/ Third Party Advisory  VDB Entry 
https://www.exploit-db.com/exploits/37816/ Third Party Advisory  VDB Entry 
https://www.exploit-db.com/exploits/38849/ Third Party Advisory  VDB Entry 
https://www.exploit-db.com/exploits/39918/ Exploit  Third Party Advisory  VDB Entry 
https://www.exploit-db.com/exploits/40619/ Third Party Advisory  VDB Entry 
https://www.exploit-db.com/exploits/40938/ Third Party Advisory  VDB Entry 
https://www.exploit-db.com/exploits/42938/ Third Party Advisory  VDB Entry 
https://www.suse.com/support/shellshock/ Third Party Advisory 

This CVE is in CISA's Known Exploited Vulnerabilities Catalog

Reference CISA's BOD 22-01 and Known Exploited Vulnerabilities Catalog for further guidance and requirements.

Vulnerability Name Date Added Due Date Required Action
GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability 01/28/2022 07/28/2022 Apply updates per vendor instructions.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') cwe source acceptance level NIST  

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Change History

32 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2014-6271
NVD Published Date:
09/24/2014
NVD Last Modified:
11/17/2021
Source:
Debian GNU/Linux