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AUSCERT Security Bulletin
ASB-2017.0011
[R1] LCE 5.0.0 Fixes Multiple Third-party Library Vulnerabilities
1 February 2017
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Tenable Log Correlation Engine (LCE)
Operating System: Windows
Red Hat
OS X
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
Execute Arbitrary Code/Commands -- Existing Account
Denial of Service -- Remote/Unauthenticated
Cross-site Scripting -- Remote with User Interaction
Unauthorised Access -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2016-9594 CVE-2016-8610 CVE-2016-7103
CVE-2016-7052 CVE-2016-4449 CVE-2016-4448
CVE-2016-4447 CVE-2016-3705 CVE-2016-3627
CVE-2016-1840 CVE-2016-1839 CVE-2016-1838
CVE-2016-1837 CVE-2016-1836 CVE-2016-1835
CVE-2016-1834 CVE-2016-1833 CVE-2016-1695
CVE-2016-0704 CVE-2016-0703 CVE-2015-3196
CVE-2015-3195 CVE-2015-1792 CVE-2015-1791
CVE-2015-1790 CVE-2015-1789 CVE-2015-1788
CVE-2015-0293 CVE-2015-0288 CVE-2015-0287
CVE-2015-0286 CVE-2015-0209 CVE-2015-0206
CVE-2015-0205 CVE-2015-0204 CVE-2014-8275
CVE-2014-3572 CVE-2014-3571 CVE-2014-3569
Member content until: Friday, March 3 2017
Reference: ASB-2017.0005
ASB-2016.0120
ASB-2016.0110
ASB-2016.0104
ASB-2016.0098
OVERVIEW
Multiple vulnerabilities have been identified in Tenable Log
Correlation Engine (LCE) prior to version 5.0.0.[1]
IMPACT
Tenable have provided the following details regarding the
vunlnerabilities:
"Log Correlation Engine (LCE) 4.8.2 is possibly impacted by multiple
vulnerabilities reported in third-party libraries. Tenable has not
investigated each one to determine if it is exploitable or the
vulnerable code path can be reached. Instead, Dev has upgraded the
impacted libraries as a faster and safer alternative. Due to the
number of library upgrades and the potential for any of these issues
to impact LCE users, we strongly encourage you to upgrade. In some
cases, older versions than 4.8.2 may be impacted by a subset of
these issues.
The following vulnerabilities have been resolved with the updated
libraries.
OpenSSL CRL Handling Unspecified NULL Pointer Dereference DoS
(VulnDB 144804 / CVE-2016-7052)
OpenSSL Consecutive Warning Alerts Handling CPU Exhaustion
Remote DoS Weakness (VulnDB 146198 / CVE-2016-8610)
libcurl lib/rand.c randit() Function Uninitialized Random Value
Weak Cryptographic Operations (VulnDB 149163 / CVE-2016-9594)
jQuery UI dialog() Function closeText Parameter XSS (VulnDB
142096 / CVE-2016-7103)
LCE Windows Client 4.4.0 is possibly impacted by multiple
vulnerabilities reported in third-party libraries. Tenable has not
investigated each one to determine if it is exploitable or the
vulnerable code path can be reached. Instead, Dev has upgraded the
impacted libraries as a faster and safer alternative. Due to the
number of library upgrades and the potential for any of these issues
to impact LCE Windows Client users, we strongly encourage you to
upgrade. In some cases, older versions than 4.4.0 may be impacted by
a subset of these issues. Because the Windows Client only connects
to an administrator-designated LCE server, upgrading third-party
libraries wasn't given as high of a priority since exploitation
would require someone controlling the LCE server or conducting a
MitM attack on a privileged segment of the network.
The following vulnerabilities have been resolved with the updated
libraries. Note that several of these issues do not have a CVE
assigned.
OpenSSL Bignum Squaring Incorrect Result Weakness (VulnDB 116796
/ 2014-3570)
OpenSSL TLS DH Certificate Missing Certificate Verify Message
Handling MitM Spoofing (SKIP-TLS) (VulnDB 116790 / CVE-2015-0205)
OpenSSL dtls1_get_record DTLS Message Handling NULL Pointer
Dereference Remote DoS (VulnDB 116793 / CVE-2014-3571)
OpenSSL dtls1_buffer_record() Function DTLS Record Saturation
Handling Memory Leak Remote DoS (VulnDB 116791 / CVE-2015-0206)
OpenSSL RSA Temporary Key Handling EXPORT_RSA Ciphers Downgrade
MitM (FREAK) (VulnDB 116794 / CVE-2015-0204)
OpenSSL Signature Algorithm / Signature Encoding Modification
Certificate Fingerprint Manipulation Weakness (VulnDB 116792 /
CVE-2014-8275)
OpenSSL Missing Server Key Exchange Message Handling ECDH
Ciphersuite Downgrade Issue (VulnDB 116795 / CVE-2014-3572)
OpenSSL s23_srvr.c ssl23_get_client_hello() Function SSLv3
Handshake Handling NULL Pointer Dereference Remote DoS (VulnDB
116423 / CVE-2014-3569)
OpenSSL Simple s2_srvr.c RSA CMS Signature Bleichenbacher
Weakness (VulnDB 135153 / CVE-2016-0704)
OpenSSL s2_srvr.c Non-zero Clear Key Length Handling SSLv2
Master Key Disclosure (VulnDB 135152 / CVE-2016-0703)
OpenSSL SSLv2 CLIENT-MASTER-KEY Message Handling Assertion
Remote DoS (VulnDB 119757 / CVE-2015-0293)
OpenSSL PKCS#7 Missing Outer ContentInfo Handling NULL Pointer
Dereference DoS (VulnDB 119756 / 2015-0289)
OpenSSL crypto/asn1/tasn_dec.c ASN1_item_ex_d2i() Function ASN.1
Structure Reuse Memory Corruption (VulnDB 119755 / CVE-2015-0287)
OpenSSL crypto/asn1/a_type.c ASN1_TYPE_cmp() Function Invalid
Read DoS (VulnDB 119761 / CVE-2015-0286)
OpenSSL crypto/x509/x509_req.c X509_to_X509_REQ() Function
Public Key Handling NULL Pointer Dereference DoS (VulnDB 119328 /
CVE-2015-0288)
OpenSSL crypto/ec/ec_asn1.c d2i_ECPrivateKey() Function Error
Handling Use-after-free DoS (VulnDB 118817 / CVE-2015-0209)
OpenSSL signedData Message Unknown Hash Function Processing
Infinte Loop Remote DoS (VulnDB 123175 / CVE-2015-1792)
OpenSSL crypto/pkcs7/pk7_doit.c PKCS7_dataDecode() Function
ASN.1-encoded PKCS#7 Blob Handling NULL Pointer Dereference
Remote DoS (VulnDB 123174 / CVE-2015-1790)
OpenSSL crypto/x509/x509_vfy.c X509_cmp_time() Function
ASN1_TIME String Handling Out-of-bounds Read Issue (VulnDB
123173 / CVE-2015-1789)
OpenSSL crypto/bn/bn_gf2m.c BN_GF2m_mod_inv() Function
ECParameters Structure Binary Polynomial Field Parsing Infinite
Loop Remote DoS (VulnDB 123172 / CVE-2015-1788)
OpenSSL NewSessionTicket Ticket Re-use Double-free Remote
Unspecified Issue (VulnDB 122875 / CVE-2015-1791)
OpenSSL PSK Identity Hint SSL_CTX Structure Update Double-free
Issue (VulnDB 131040 / CVE-2015-3196)
OpenSSL X509_ATTRIBUTE Structure Handling Memory Leak Remote DoS
(VulnDB 131039 / CVE-2015-3195)
Libxml2 Multiple Functionality Format Strings (VulnDB 138966 /
CVE-2016-4448)
Libxml2 parser.c xmlParseElementDecl() /
xmlParseConditionalSections() Functions Out-of-bounds Read Issue
(VulnDB 138928 / CVE-2016-4447)
Libxml2 parser.c xmlStringLenDecodeEntities() Function
Unspecified XML External Entity (XXE) Injection Issue (VulnDB
138926 / CVE-2016-4449)
Libxml2 parser.c xmlParseStartTag2() Function Heap
Use-after-free (VulnDB 138567 / CVE-2016-1835)
Libxml2 xmlregexp.c xmlFAParseCharRange() Function Heap Buffer
Overflow (VulnDB 138572 / CVE-2016-1840)
Libxml2 parser.c xmlParseNCNameComplex() Function Heap
Use-after-free (VulnDB 138568 / CVE-2016-1836)
Libxml2 xmlstring.c xmlStrncatNew() Function Heap Buffer
Overflow (VulnDB 138566 / CVE-2016-1834)
Libxml2 HTMLparser.c htmlParseSystemLiteral() /
htmlParsePubidLiteral() Functions Heap Buffer Overflow
(VulnDB138569 / CVE-2016-1837)
Libxml2 xmlsave.c xmlBufAttrSerializeTxtContent() Function
Recover Mode XML Content Handling Out-of-bounds Read Issue
(VulnDB137965 / 2016-4483)
Libxml2 parser.c Multiple Function Recursive
xmlStringDecodeEntities() Call Handling Stack Overflow DoS
(VulnDB137962 / CVE-2016-3705)
Libxml2 HTMLparser.c htmlParseName() / htmlParseNameComplex()
Functions Out-of-bounds Read Issue (VulnDB 134833 /
CVE-2016-1839)
Libxml2 parser.c xmlParserEntityCheck() Function Recovery Mode
XML Content Parsing Recursion DoS (VulnDB 136194 / CVE-2016-3627)
Libxml2 parser.c xmlParseEndTag2() Function Out-of-bounds Read
Issue (VulnDB 130651 / CVE-2016-1838 / CVE-2016-1695)
Libxml2 parserInternals.c xmlNextChar() Function Out-of-bounds
Read Issue (VulnDB 130653 / CVE-2016-1833)
Libxml2 uri.c xmlParse3986Port() Function Port Argument Handling
Integer Overflow Unspecified Issue (VulnDB 138921)
Libxml2 HTMLparser.c htmlParseNameComplex() Function HTML File
Encoding Detection Failure (VulnDB 138927)
Note that the CVSSv2 score associated with this advisory is
specific to an the OpenSSL integration into LCE Windows Client
and assumes a worst-case scenario. These updates are proactive;
Tenable has had no reports of exploitation and some of these
issues may not impact LCE or the LCE Windows Client at all."[1]
MITIGATION
Tenable recommends upgrading to the latest version to address these
issues:
"Log Correlation Engine (LCE) 5.0.0 has been released, which updates
the linked OpenSSL, cURL / libcurl, and jQuery UI libraries. LCE
Windows Client 5.0.0 has been released, which updates the linked
OpenSSL, cURL / libcurl, and libxml2 libraries. The new versions can
be obtained on the Tenable Support Portal."[1]
REFERENCES
[1] [R1] LCE 5.0.0 Fixes Multiple Third-party Library Vulnerabilities
http://www.tenable.com/security/tns-2017-02
AusCERT has made every effort to ensure that the information contained
in this document is accurate. However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
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