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Red Hat: RHSA-2009:1428-01 Moderate: xmlsec1 Authentication Bypass

red hat
Calendar Grey September 8, 2009
Dist Redhat Esm H88
Important xmlsec1 security patch released for Red Hat Enterprise Linux versions 4 and 5. Make sure to implement system enhancements promptly.
Updated xmlsec1 packages that fix one security issue are now available for Red Hat Enterprise Linux 4 and 5. This update has been rated as having moderate security impact by the R...

Solution

Before applying this update, make sure that all previously-released errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at

Summary

The XML Security Library is a C library based on libxml2 and OpenSSL. It implements the XML Signature Syntax and Processing and XML Encryption Syntax and Processing standards. HMAC is used for message authentication using cryptographic hash functions. The HMAC algorithm allows the hash output to be truncated (as documented in RFC 2104).
A missing check for the recommended minimum length of the truncated form of HMAC-based XML signatures was found in xmlsec1. An attacker could use this flaw to create a specially-crafted XML file that forges an XML signature, allowing the attacker to bypass authentication that is based on the XML Signature specification. (CVE-2009-0217)
Users of xmlsec1 should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the updated packages, applications that use the XML Security Library must be restarted for the update to take effect.

Topics%20covered

Topics Covered

security advisory update red hat moderate impact authentication bypass xmlsec1

References

https://www.cve.org/CVERecord?id=CVE-2009-0217 https://access.redhat.com/security/updates/classification#moderate https://datatracker.ietf.org/doc/html/rfc2104

Package List

Red Hat Enterprise Linux AS version 4:
Source:
i386: xmlsec1-1.2.6-3.1.i386.rpm xmlsec1-debuginfo-1.2.6-3.1.i386.rpm xmlsec1-devel-1.2.6-3.1.i386.rpm xmlsec1-openssl-1.2.6-3.1.i386.rpm xmlsec1-openssl-devel-1.2.6-3.1.i386.rpm
ia64: xmlsec1-1.2.6-3.1.i386.rpm xmlsec1-1.2.6-3.1.ia64.rpm xmlsec1-debuginfo-1.2.6-3.1.i386.rpm xmlsec1-debuginfo-1.2.6-3.1.ia64.rpm xmlsec1-devel-1.2.6-3.1.ia64.rpm xmlsec1-openssl-1.2.6-3.1.i386.rpm xmlsec1-openssl-1.2.6-3.1.ia64.rpm xmlsec1-openssl-devel-1.2.6-3.1.ia64.rpm
ppc: xmlsec1-1.2.6-3.1.ppc.rpm xmlsec1-1.2.6-3.1.ppc64.rpm xmlsec1-debuginfo-1.2.6-3.1.ppc.rpm xmlsec1-debuginfo-1.2.6-3.1.ppc64.rpm xmlsec1-devel-1.2.6-3.1.ppc.rpm xmlsec1-openssl-1.2.6-3.1.ppc.rpm xmlsec1-openssl-1.2.6-3.1.ppc64.rpm xmlsec1-openssl-devel-1.2.6-3.1.ppc.rpm
s390: xmlsec1-1.2.6-3.1.s390.rpm xmlsec1-debuginfo-1.2.6-3.1.s390.rpm xmlsec1-devel-1.2.6-3.1.s390.rpm xmlsec1-openssl-1.2.6-3.1.s390.rpm xmlsec1-openssl-devel-1.2.6-3.1.s390.rpm
s390x: xmlsec1-1.2.6-3.1.s390.rpm xmlsec1-1.2.6-3.1.s390x.rpm xmlsec1-debuginfo-1.2.6-3.1.s390.rpm xmlsec1-debuginfo-1.2.6-3.1.s390x.rpm xmlsec1-devel-1.2.6-3.1.s390x.rpm xmlsec1-openssl-1.2.6-3.1.s390.rpm xmlsec1-openssl-1.2.6-3.1.s390x.rpm xmlsec1-openssl-devel-1.2.6-3.1.s390x.rpm
x86_64: xmlsec1-1.2.6-3.1.i386.rpm

Read the Full Advisory


Advisory ID: RHSA-2009:1428-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2009:1428.html
Issue date: 2009-09-08

Topic

Updated xmlsec1 packages that fix one security issue are now available forRed Hat Enterprise Linux 4 and 5.This update has been rated as having moderate security impact by the RedHat Security Response Team.

Topics%20covered

Topics Covered

security advisory update red hat moderate impact authentication bypass xmlsec1

Relevant Releases Architectures

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64

Red Hat Enterprise Linux Desktop version 4 - i386, x86_64

Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64

Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

RHEL Desktop Workstation (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Bugs Fixed

511915 - CVE-2009-0217 xmlsec1, mono, xml-security-c, xml-security-1.3.0-1jpp.ep1.*: XMLDsig HMAC-based signatures spoofing and authentication bypass

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