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AUSCERT External Security Bulletin Redistribution
Multiple Vulnerabilities in OpenSSL
10 June 2014
AusCERT Security Bulletin Summary
Operating System: Network Appliance
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Provide Misleading Information -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Reduced Security -- Remote/Unauthenticated
CVE Names: CVE-2014-3470 CVE-2014-0224 CVE-2014-0221
CVE-2014-0198 CVE-2014-0195 CVE-2014-0076
Comment: Fortinet is making every effort to produce software fixes for these
vulnerabilities. Estimated availability times for these updates will
be posted in future revisions of this advisory.
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Multiple Vulnerabilities in OpenSSL
Jun 06 2014
Loss of Confidentiality, Denial of Service
CVE-2014-0224, CVE-2014-0221, CVE-2014-0195
Fixed In Firmware
The OpenSSL project released an advisory on June 5th, 2014, which describes the
SSL/TLS MITM vulnerability (CVE-2014-0224)
DTLS recursion flaw (CVE-2014-0221)
DTLS invalid fragment vulnerability (CVE-2014-0195)
SSL_MODE_RELEASE_BUFFERS session injection or denial of service (CVE-2010-5298)
Anonymous ECDH denial of service (CVE-2014-3470)
More information on these issues can be found in the original OpenSSL advisory.
Many Fortinet products utilize OpenSSL and are affected by this advisory.
Version 1, 2014-06-06 1500 PST: Initial advisory.
CVE-2014-0224 may allow an attacker with a privileged network position
(man-in-the-middle) to decrypt SSL encrypted communications.
CVE-2014-0221 may allow an attacker to crash a DTLS client with an invalid
CVE-2014-0195 can result in a buffer overrun attack by sending invalid DTLS
fragments to an OpenSSL DTLS client or server.
CVE-2014-0198 and CVE-2010-5298 may allow an attacker to cause a denial of
service under certain conditions, when SSL_MODE_RELEASE_BUFFERS is enabled.
CVE-2014-3470 may allow an attacker to trigger a denial of service in SSL
clients when anonymous ECDH ciphersuites are enabled. This issue does not
affect Fortinet products.
CVE-2014-0076 can be used to discover ECDSA nonces on multi-user systems by
exploiting timing attacks in CPU L3 caches. This does not apply to Fortinet
FortiOS, FortiSwitch, FortiAnalyzer, FortiManager, FortiMail, FortiAP,
FortiVoiceOS, FortiWeb, FortiAuthenticator, FortiDNS, FortiDDoS, FortiCache,
FortiRecorder, FortiSandbox, FortiADC, FortiADC-E, Equalizer LX/GX, AscenLink
FortiOS 4.x and 5.x are affected by CVE-2014-0224 and CVE-2014-0195 (via CAPWAP
service). In addition, FortiOS 5.x SSL VPN and HTTPS administration are
vulnerable to CVE-2014-0198 and CVE-2010-5298.
FortiAP is affected by CVE-2014-0224, CVE-2014-0221 and CVE-2014-0195.
All other products listed in this advisory are only affected by CVE-2014-0224.
Note that while the FortiVoice 200D, 2000E and VM products are affected, other
FortiVoice products do not use OpenSSL and are not affected.
This information may be subject to revision in future versions of this
FortiGuard labs has released an IPS signature entitled
"OpenSSL.ChangeCipherSpec.Injection" to protect against CVE-2014-0224. This
signature can be used on interface policies and transit policies to protect
the FortiGate control plane and devices behind the FortiGate firewall,
respectively. For more information on using IPS signatures, refer to the
Customers running FortiGate firewalls who are not using CAPWAP protocol to
support access points should consider disabling CAPWAP to reduce exposure to
CVE-2014-0195. This can be performed in the Web UI on the interface
configuration form, or using the CLI under "config system interface".
Fortinet is making every effort to produce software fixes for these
vulnerabilities. Estimated availability times for these updates will be posted
in future revisions of this advisory.
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