HOME VULNERABILITIESCVE-2011-3389

MEDIUM

CVE-2011-3389

CWE-326Published: September 6, 2011· Updated: Jun 16, 2026

4.3

CVSS v3.1

Official Description

The SSL protocol, as used in certain configurations in Microsoft Windows and Microsoft Internet Explorer, Mozilla Firefox, Google Chrome, Opera, and other products, encrypts data by using CBC mode with chained initialization vectors, which allows man-in-the-middle attackers to obtain plaintext HTTP headers via a blockwise chosen-boundary attack (BCBA) on an HTTPS session, in conjunction with JavaScript code that uses (1) the HTML5 WebSocket API, (2) the Java URLConnection API, or (3) the Silverlight WebClient API, aka a "BEAST" attack.

Technical Analysis

CVE-2011-3389 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityM

Privileges Req.

User Interaction

Scope

Impact

ConfidentialityP

IntegrityNone

AvailabilityNone

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

Affected Vendors & Products

Canonical1 product(s)

ubuntu linux

Debian1 product(s)

debian linux

Google1 product(s)

chrome

haxx1 product(s)

curl

Microsoft2 product(s)

internet explorerwindows

Mozilla1 product(s)

firefox

opera1 product(s)

opera browser

Red Hat5 product(s)

enterprise linux desktopenterprise linux eusenterprise linux serverenterprise linux server ausenterprise linux workstation

siemens4 product(s)

simatic rf68xr firmwaresimatic rf68xrsimatic rf615r firmwaresimatic rf615r

Source: NVD CPE · 24 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://technet.microsoft.com/security/advisory/2588513

PATCHhttp://www.insecure.cl/Beast-SSL.rar

PATCHhttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-006

PATCHhttp://technet.microsoft.com/security/advisory/2588513

PATCHhttp://www.insecure.cl/Beast-SSL.rar

PATCHhttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2012/ms12-006

ADVISORYhttp://blog.mozilla.com/security/2011/09/27/attack-against-tls-protected-communications/

ADVISORYhttp://blogs.technet.com/b/msrc/archive/2011/09/26/microsoft-releases-security-advisory-2588513.aspx

ADVISORYhttp://blogs.technet.com/b/srd/archive/2011/09/26/is-ssl-broken-more-about-security-advisory-2588513.aspx

ADVISORYhttp://curl.haxx.se/docs/adv_20120124B.html

ADVISORYhttp://downloads.asterisk.org/pub/security/AST-2016-001.html

ADVISORYhttp://eprint.iacr.org/2004/111

ADVISORYhttp://eprint.iacr.org/2006/136

ADVISORYhttp://googlechromereleases.blogspot.com/2011/10/chrome-stable-release.html

ADVISORYhttp://isc.sans.edu/diary/SSL+TLS+part+3+/11635

ADVISORYhttp://marc.info/?l=bugtraq&m=132750579901589&w=2

ADVISORYhttp://marc.info/?l=bugtraq&m=132872385320240&w=2

ADVISORYhttp://marc.info/?l=bugtraq&m=133365109612558&w=2

ADVISORYhttp://marc.info/?l=bugtraq&m=133728004526190&w=2

ADVISORYhttp://marc.info/?l=bugtraq&m=134254866602253&w=2

ADVISORYhttp://marc.info/?l=bugtraq&m=134254957702612&w=2

ADVISORYhttp://my.opera.com/securitygroup/blog/2011/09/28/the-beast-ssl-tls-issue

ADVISORYhttp://rhn.redhat.com/errata/RHSA-2012-0508.html

ADVISORYhttp://security.gentoo.org/glsa/glsa-201203-02.xml

ADVISORYhttp://security.gentoo.org/glsa/glsa-201406-32.xml

ADVISORYhttp://support.apple.com/kb/HT4999

ADVISORYhttp://support.apple.com/kb/HT5001

ADVISORYhttp://support.apple.com/kb/HT5130

ADVISORYhttp://support.apple.com/kb/HT5501

ADVISORYhttp://support.apple.com/kb/HT6150

ADVISORYhttp://vnhacker.blogspot.com/2011/09/beast.html

ADVISORYhttp://www.apcmedia.com/salestools/SJHN-7RKGNM/SJHN-7RKGNM_R4_EN.pdf

ADVISORYhttp://www.debian.org/security/2012/dsa-2398

ADVISORYhttp://www.ibm.com/developerworks/java/jdk/alerts/

ADVISORYhttp://www.imperialviolet.org/2011/09/23/chromeandbeast.html

ADVISORYhttp://www.kb.cert.org/vuls/id/864643

ADVISORYhttp://www.opera.com/docs/changelogs/mac/1151/

ADVISORYhttp://www.opera.com/docs/changelogs/mac/1160/

ADVISORYhttp://www.opera.com/docs/changelogs/unix/1151/

ADVISORYhttp://www.opera.com/docs/changelogs/unix/1160/

ADVISORYhttp://www.opera.com/docs/changelogs/windows/1151/

ADVISORYhttp://www.opera.com/docs/changelogs/windows/1160/

ADVISORYhttp://www.opera.com/support/kb/view/1004/

ADVISORYhttp://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html

ADVISORYhttp://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html

ADVISORYhttp://www.oracle.com/technetwork/topics/security/javacpuoct2011-443431.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2011-1384.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2012-0006.html

ADVISORYhttp://www.securityfocus.com/bid/49388

ADVISORYhttp://www.securityfocus.com/bid/49778

ADVISORYhttp://www.securitytracker.com/id/1029190

ADVISORYhttp://www.securitytracker.com/id?1025997

ADVISORYhttp://www.securitytracker.com/id?1026103

ADVISORYhttp://www.securitytracker.com/id?1026704

ADVISORYhttp://www.ubuntu.com/usn/USN-1263-1

ADVISORYhttp://www.us-cert.gov/cas/techalerts/TA12-010A.html

ADVISORYhttps://blogs.oracle.com/sunsecurity/entry/multiple_vulnerabilities_in_fetchmail

ADVISORYhttps://bugzilla.novell.com/show_bug.cgi?id=719047

ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=737506

ADVISORYhttps://cert-portal.siemens.com/productcert/pdf/ssa-556833.pdf

ADVISORYhttps://ics-cert.us-cert.gov/advisories/ICSMA-18-058-02

ADVISORYhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14752

ADVISORYhttp://blog.mozilla.com/security/2011/09/27/attack-against-tls-protected-communications/

ADVISORYhttp://blogs.technet.com/b/msrc/archive/2011/09/26/microsoft-releases-security-advisory-2588513.aspx

ADVISORYhttp://blogs.technet.com/b/srd/archive/2011/09/26/is-ssl-broken-more-about-security-advisory-2588513.aspx

ADVISORYhttp://curl.haxx.se/docs/adv_20120124B.html

ADVISORYhttp://downloads.asterisk.org/pub/security/AST-2016-001.html

ADVISORYhttp://eprint.iacr.org/2004/111

ADVISORYhttp://eprint.iacr.org/2006/136

ADVISORYhttp://googlechromereleases.blogspot.com/2011/10/chrome-stable-release.html

ADVISORYhttp://isc.sans.edu/diary/SSL+TLS+part+3+/11635

ADVISORYhttp://marc.info/?l=bugtraq&m=132750579901589&w=2

ADVISORYhttp://marc.info/?l=bugtraq&m=132872385320240&w=2

ADVISORYhttp://marc.info/?l=bugtraq&m=133365109612558&w=2

ADVISORYhttp://marc.info/?l=bugtraq&m=133728004526190&w=2

ADVISORYhttp://marc.info/?l=bugtraq&m=134254866602253&w=2

ADVISORYhttp://marc.info/?l=bugtraq&m=134254957702612&w=2

ADVISORYhttp://my.opera.com/securitygroup/blog/2011/09/28/the-beast-ssl-tls-issue

ADVISORYhttp://rhn.redhat.com/errata/RHSA-2012-0508.html

ADVISORYhttp://security.gentoo.org/glsa/glsa-201203-02.xml

ADVISORYhttp://security.gentoo.org/glsa/glsa-201406-32.xml

ADVISORYhttp://support.apple.com/kb/HT4999

ADVISORYhttp://support.apple.com/kb/HT5001

ADVISORYhttp://support.apple.com/kb/HT5130

ADVISORYhttp://support.apple.com/kb/HT5501

ADVISORYhttp://support.apple.com/kb/HT6150

ADVISORYhttp://vnhacker.blogspot.com/2011/09/beast.html

ADVISORYhttp://www.apcmedia.com/salestools/SJHN-7RKGNM/SJHN-7RKGNM_R4_EN.pdf

ADVISORYhttp://www.debian.org/security/2012/dsa-2398

ADVISORYhttp://www.ibm.com/developerworks/java/jdk/alerts/

ADVISORYhttp://www.imperialviolet.org/2011/09/23/chromeandbeast.html

ADVISORYhttp://www.kb.cert.org/vuls/id/864643

ADVISORYhttp://www.opera.com/docs/changelogs/mac/1151/

ADVISORYhttp://www.opera.com/docs/changelogs/mac/1160/

ADVISORYhttp://www.opera.com/docs/changelogs/unix/1151/

ADVISORYhttp://www.opera.com/docs/changelogs/unix/1160/

ADVISORYhttp://www.opera.com/docs/changelogs/windows/1151/

ADVISORYhttp://www.opera.com/docs/changelogs/windows/1160/

ADVISORYhttp://www.opera.com/support/kb/view/1004/

ADVISORYhttp://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html

ADVISORYhttp://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html

ADVISORYhttp://www.oracle.com/technetwork/topics/security/javacpuoct2011-443431.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2011-1384.html

ADVISORYhttp://www.redhat.com/support/errata/RHSA-2012-0006.html

ADVISORYhttp://www.securityfocus.com/bid/49388

ADVISORYhttp://www.securityfocus.com/bid/49778

ADVISORYhttp://www.securitytracker.com/id/1029190

ADVISORYhttp://www.securitytracker.com/id?1025997

ADVISORYhttp://www.securitytracker.com/id?1026103

ADVISORYhttp://www.securitytracker.com/id?1026704

ADVISORYhttp://www.ubuntu.com/usn/USN-1263-1

ADVISORYhttp://www.us-cert.gov/cas/techalerts/TA12-010A.html

ADVISORYhttps://blogs.oracle.com/sunsecurity/entry/multiple_vulnerabilities_in_fetchmail

ADVISORYhttps://bugzilla.novell.com/show_bug.cgi?id=719047

ADVISORYhttps://bugzilla.redhat.com/show_bug.cgi?id=737506

ADVISORYhttps://cert-portal.siemens.com/productcert/pdf/ssa-556833.pdf

ADVISORYhttps://ics-cert.us-cert.gov/advisories/ICSMA-18-058-02

ADVISORYhttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14752

All References (178)

→

http://blog.mozilla.com/security/2011/09/27/attack-against-tls-protected-communications/Third Party Advisory

→

http://blogs.technet.com/b/msrc/archive/2011/09/26/microsoft-releases-security-advisory-2588513.aspxThird Party Advisory

→

http://blogs.technet.com/b/srd/archive/2011/09/26/is-ssl-broken-more-about-security-advisory-2588513.aspxThird Party Advisory

→

http://curl.haxx.se/docs/adv_20120124B.htmlThird Party Advisory

→

http://downloads.asterisk.org/pub/security/AST-2016-001.htmlThird Party Advisory

→

http://ekoparty.org/2011/juliano-rizzo.phpBroken Link

→

http://eprint.iacr.org/2004/111Third Party Advisory

→

http://eprint.iacr.org/2006/136Third Party Advisory

→

http://googlechromereleases.blogspot.com/2011/10/chrome-stable-release.htmlNot Applicable · Vendor Advisory

→

http://isc.sans.edu/diary/SSL+TLS+part+3+/11635Third Party Advisory

→

http://lists.apple.com/archives/Security-announce/2011//Oct/msg00001.htmlBroken Link

→

http://lists.apple.com/archives/Security-announce/2011//Oct/msg00002.htmlBroken Link

→

http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.htmlBroken Link · Mailing List

→

http://lists.apple.com/archives/security-announce/2012/Jul/msg00001.htmlBroken Link · Mailing List

→

http://lists.apple.com/archives/security-announce/2012/May/msg00001.htmlBroken Link · Mailing List

Quick Facts

CVE IDCVE-2011-3389

CVSS Score4.3 / 10

SeverityMEDIUM

WeaknessCWE-326

CISA KEVNo

Affected9 vendor(s)

PublishedSep 6, 2011

Related CVEs (CWE-326)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2011-3389 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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