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Category:   Application (Generic)  >   Net-snmp Vendors:   [Multiple Authors/Vendors]
(Mandrake Issues Fix) Many Simple Network Management Protocol (SNMP) Implementations Allow Remote Users to Deny Service or Obtain Access to the System
SecurityTracker Alert ID:  1003569
SecurityTracker URL:  http://securitytracker.com/id/1003569
CVE Reference:   CVE-2002-0012, CVE-2002-0013   (Links to External Site)
Date:  Feb 15 2002
Impact:   Denial of service via network, Execution of arbitrary code via network, Root access via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   CERT reported that the University of Oulu (Finland) has discovered vulnerabilities in many vendor implementations of the Simple Network Management Protocol (SNMP) version 1.

The Oulu University Secure Programming Group (OUSPG, http://www.ee.oulu.fi/research/ouspg/) reports that there are numerous vulnerabilities in SNMPv1 implementations from many different vendors. A remote user can reportedly cause denial of service attacks or gain elevated privileges on the system.

The extent of the vulnerabilities depends on the specific vendor implementation. Vulnerabilities apparently include denial-of-service conditions, format string vulnerabilities, and buffer overflows. Some vulnerabilities do not require the request message to use the correct SNMP community string, according to CERT.

OUSPG reportedly performed two sets of tests of SNMP request message handling: one test focused on ASN.1 decoding, and the second looked for exceptions in the processing of the decoded data. The testers used the PROTOS c06-snmpv1 test suite:

http://www.ee.oulu.fi/research/ouspg/protos/testing/c06/snmpv1/0100.html

Some of the products implement defective SNMPv1 trap handling. A remote user can reportedly send a specially crafted SNMP trap message to an SNMP manager to trigger the vulnerability.

Some of the products implement defective SNMPv1 request handling. A remote user can reportedly send a specially crafted SNMP request message to an SNMP agent to trigger the vulnerability.

Specific technical results were not available at the time of this entry. However, CERT reports that the following vendors are affected to some degree:

3Com,
AdventNet,
CacheFlow,
Caldera,
Cisco,
Compaq,
Computer Associates,
COMTEK Services,
FreeBSD,
Hewlett Packard,
Hirschmann Electronics,
Innerdive Solutions,
Juniper Networks,
Lantronix,
Lotus,
Lucent,
Marconi,
Microsoft,
Multinet,
Netscape,
NET-SNMP,
Nokia,
Novell,
Red Hat,
Redback Networks,
SNMP Research

CERT has provided more information at the following URLs:

http://www.kb.cert.org/vuls/id/854306
http://www.kb.cert.org/vuls/id/107186

Impact:   A remote user may be able to cause denial of service conditions or may be able to obtain elevated privileges on the system.
Solution:   The vendor has released a fix.

Linux-Mandrake 7.1:
93fd86af6221a6e97a2658c947dfec2a 7.1/RPMS/ucd-snmp-4.2.3-1.3mdk.i586.rpm
2255943a33d17b485d76841ea441ec7c 7.1/RPMS/ucd-snmp-devel-4.2.3-1.3mdk.i586.rpm
d04c6712ea9e519ffc8209bdf94ce34a 7.1/RPMS/ucd-snmp-utils-4.2.3-1.3mdk.i586.rpm
5eaba54efd8006ee6467454c7b27db39 7.1/SRPMS/ucd-snmp-4.2.3-1.3mdk.src.rpm

Linux-Mandrake 7.2:
ded61d25c1172daf46808b6dc5992a0d 7.2/RPMS/ucd-snmp-4.2.3-1.2mdk.i586.rpm
f84e3bb953c60976516006aeacbbecb1 7.2/RPMS/ucd-snmp-devel-4.2.3-1.2mdk.i586.rpm
489abc125f1f09f96b4216227c9780e4 7.2/RPMS/ucd-snmp-utils-4.2.3-1.2mdk.i586.rpm
62f371ebe47a178f22eea04a46be0133 7.2/SRPMS/ucd-snmp-4.2.3-1.2mdk.src.rpm

Mandrake Linux 8.0:
68490a0a6f320bff263bf02b5937f636 8.0/RPMS/ucd-snmp-4.2.3-1.2mdk.i586.rpm
c039d6a1b14b4d9432dc54772e737e12 8.0/RPMS/ucd-snmp-devel-4.2.3-1.2mdk.i586.rpm
b9bcde5c175bb0f60dd273f73b2451a8 8.0/RPMS/ucd-snmp-utils-4.2.3-1.2mdk.i586.rpm
62f371ebe47a178f22eea04a46be0133 8.0/SRPMS/ucd-snmp-4.2.3-1.2mdk.src.rpm

Mandrake Linux 8.0/ppc:
625d72836471bb720d2059534d380c9b ppc/8.0/RPMS/ucd-snmp-4.2.3-1.2mdk.ppc.rpm
fe87c68ae55733562664337808b8cdb9 ppc/8.0/RPMS/ucd-snmp-devel-4.2.3-1.2mdk.ppc.rpm
0dbf1a4fb395b7fee70f5a320fc6a512 ppc/8.0/RPMS/ucd-snmp-utils-4.2.3-1.2mdk.ppc.rpm
62f371ebe47a178f22eea04a46be0133 ppc/8.0/SRPMS/ucd-snmp-4.2.3-1.2mdk.src.rpm

Mandrake Linux 8.1:
f35c85a83c83019da401f960a17820a7 8.1/RPMS/libsnmp0-4.2.3-1.1mdk.i586.rpm
ec1674b1a01486383218fec8d3bdeaa2 8.1/RPMS/libsnmp0-devel-4.2.3-1.1mdk.i586.rpm
c1bbbce3d1edeb366af8207476f8bba4 8.1/RPMS/ucd-snmp-4.2.3-1.1mdk.i586.rpm
ec1118634eb28a4f78a37c7dcbb4b122 8.1/RPMS/ucd-snmp-utils-4.2.3-1.1mdk.i586.rpm
cb2439511ce05728a37e37c62be6f7ac 8.1/SRPMS/ucd-snmp-4.2.3-1.1mdk.src.rpm

Mandrake Linux 8.1/ia64:
e75d7c90d2fb756c7deb414e68f05764 ia64/8.1/RPMS/libsnmp0-4.2.3-1.1mdk.ia64.rpm
c8d97181c3a24131068567005ddcc3ac ia64/8.1/RPMS/libsnmp0-devel-4.2.3-1.1mdk.ia64.rpm
4379db079554d1db0b3045c31799a9a0 ia64/8.1/RPMS/ucd-snmp-4.2.3-1.1mdk.ia64.rpm
80530a228d794dc938053fbdaa8541fb ia64/8.1/RPMS/ucd-snmp-utils-4.2.3-1.1mdk.ia64.rpm
cb2439511ce05728a37e37c62be6f7ac ia64/8.1/SRPMS/ucd-snmp-4.2.3-1.1mdk.src.rpm

Corporate Server 1.0.1:
93fd86af6221a6e97a2658c947dfec2a 1.0.1/RPMS/ucd-snmp-4.2.3-1.3mdk.i586.rpm
2255943a33d17b485d76841ea441ec7c 1.0.1/RPMS/ucd-snmp-devel-4.2.3-1.3mdk.i586.rpm
d04c6712ea9e519ffc8209bdf94ce34a 1.0.1/RPMS/ucd-snmp-utils-4.2.3-1.3mdk.i586.rpm
5eaba54efd8006ee6467454c7b27db39 1.0.1/SRPMS/ucd-snmp-4.2.3-1.3mdk.src.rpm

Single Network Firewall 7.2:
ded61d25c1172daf46808b6dc5992a0d snf7.2/RPMS/ucd-snmp-4.2.3-1.2mdk.i586.rpm
489abc125f1f09f96b4216227c9780e4 snf7.2/RPMS/ucd-snmp-utils-4.2.3-1.2mdk.i586.rpm
62f371ebe47a178f22eea04a46be0133 snf7.2/SRPMS/ucd-snmp-4.2.3-1.2mdk.src.rpm

See the Source Message for the vendor's advisory containing directions on how to apply the appropriate fix.

Cause:   Access control error, Boundary error, Input validation error
Underlying OS:  Linux (Mandriva/Mandrake)
Underlying OS Comments:  7.1, 7.2, 8.0, 8.1, Corporate Server 1.0.1, Single Network Firewall 7.2

Message History:   This archive entry is a follow-up to the message listed below.
Feb 12 2002 Many Simple Network Management Protocol (SNMP) Implementations Allow Remote Users to Deny Service or Obtain Access to the System



 Source Message Contents

Subject:  [Security Announce] MDKSA-2002:014 - ucd-snmp update


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

________________________________________________________________________

                Mandrake Linux Security Update Advisory
________________________________________________________________________

Package name:           ucd-snmp
Advisory ID:            MDKSA-2002:014
Date:                   February 15th, 2002
Affected versions:      7.1, 7.2, 8.0, 8.1, Corporate Server 1.0.1,
                        Single Network Firewall 7.2
________________________________________________________________________

Problem Description:

 The Oulu University Secure Programming Group (OUSPG) has identified
 numerous vulnerabilities in multiple vendor SNMPv1 implementations.
 These vulnerabilities may allow unauthorized privileged access, denial
 of service attacks, or unstable behaviour.
________________________________________________________________________

References:

  http://www.cert.org/advisories/CA-2002-03.html
________________________________________________________________________

Updated Packages:

 Linux-Mandrake 7.1:
 93fd86af6221a6e97a2658c947dfec2a  7.1/RPMS/ucd-snmp-4.2.3-1.3mdk.i586.rpm
 2255943a33d17b485d76841ea441ec7c  7.1/RPMS/ucd-snmp-devel-4.2.3-1.3mdk.i586.rpm
 d04c6712ea9e519ffc8209bdf94ce34a  7.1/RPMS/ucd-snmp-utils-4.2.3-1.3mdk.i586.rpm
 5eaba54efd8006ee6467454c7b27db39  7.1/SRPMS/ucd-snmp-4.2.3-1.3mdk.src.rpm

 Linux-Mandrake 7.2:
 ded61d25c1172daf46808b6dc5992a0d  7.2/RPMS/ucd-snmp-4.2.3-1.2mdk.i586.rpm
 f84e3bb953c60976516006aeacbbecb1  7.2/RPMS/ucd-snmp-devel-4.2.3-1.2mdk.i586.rpm
 489abc125f1f09f96b4216227c9780e4  7.2/RPMS/ucd-snmp-utils-4.2.3-1.2mdk.i586.rpm
 62f371ebe47a178f22eea04a46be0133  7.2/SRPMS/ucd-snmp-4.2.3-1.2mdk.src.rpm

 Mandrake Linux 8.0:
 68490a0a6f320bff263bf02b5937f636  8.0/RPMS/ucd-snmp-4.2.3-1.2mdk.i586.rpm
 c039d6a1b14b4d9432dc54772e737e12  8.0/RPMS/ucd-snmp-devel-4.2.3-1.2mdk.i586.rpm
 b9bcde5c175bb0f60dd273f73b2451a8  8.0/RPMS/ucd-snmp-utils-4.2.3-1.2mdk.i586.rpm
 62f371ebe47a178f22eea04a46be0133  8.0/SRPMS/ucd-snmp-4.2.3-1.2mdk.src.rpm

 Mandrake Linux 8.0/ppc:
 625d72836471bb720d2059534d380c9b  ppc/8.0/RPMS/ucd-snmp-4.2.3-1.2mdk.ppc.rpm
 fe87c68ae55733562664337808b8cdb9  ppc/8.0/RPMS/ucd-snmp-devel-4.2.3-1.2mdk.ppc.rpm
 0dbf1a4fb395b7fee70f5a320fc6a512  ppc/8.0/RPMS/ucd-snmp-utils-4.2.3-1.2mdk.ppc.rpm
 62f371ebe47a178f22eea04a46be0133  ppc/8.0/SRPMS/ucd-snmp-4.2.3-1.2mdk.src.rpm

 Mandrake Linux 8.1:
 f35c85a83c83019da401f960a17820a7  8.1/RPMS/libsnmp0-4.2.3-1.1mdk.i586.rpm
 ec1674b1a01486383218fec8d3bdeaa2  8.1/RPMS/libsnmp0-devel-4.2.3-1.1mdk.i586.rpm
 c1bbbce3d1edeb366af8207476f8bba4  8.1/RPMS/ucd-snmp-4.2.3-1.1mdk.i586.rpm
 ec1118634eb28a4f78a37c7dcbb4b122  8.1/RPMS/ucd-snmp-utils-4.2.3-1.1mdk.i586.rpm
 cb2439511ce05728a37e37c62be6f7ac  8.1/SRPMS/ucd-snmp-4.2.3-1.1mdk.src.rpm

 Mandrake Linux 8.1/ia64:
 e75d7c90d2fb756c7deb414e68f05764  ia64/8.1/RPMS/libsnmp0-4.2.3-1.1mdk.ia64.rpm
 c8d97181c3a24131068567005ddcc3ac  ia64/8.1/RPMS/libsnmp0-devel-4.2.3-1.1mdk.ia64.rpm
 4379db079554d1db0b3045c31799a9a0  ia64/8.1/RPMS/ucd-snmp-4.2.3-1.1mdk.ia64.rpm
 80530a228d794dc938053fbdaa8541fb  ia64/8.1/RPMS/ucd-snmp-utils-4.2.3-1.1mdk.ia64.rpm
 cb2439511ce05728a37e37c62be6f7ac  ia64/8.1/SRPMS/ucd-snmp-4.2.3-1.1mdk.src.rpm

 Corporate Server 1.0.1:
 93fd86af6221a6e97a2658c947dfec2a  1.0.1/RPMS/ucd-snmp-4.2.3-1.3mdk.i586.rpm
 2255943a33d17b485d76841ea441ec7c  1.0.1/RPMS/ucd-snmp-devel-4.2.3-1.3mdk.i586.rpm
 d04c6712ea9e519ffc8209bdf94ce34a  1.0.1/RPMS/ucd-snmp-utils-4.2.3-1.3mdk.i586.rpm
 5eaba54efd8006ee6467454c7b27db39  1.0.1/SRPMS/ucd-snmp-4.2.3-1.3mdk.src.rpm

 Single Network Firewall 7.2:
 ded61d25c1172daf46808b6dc5992a0d  snf7.2/RPMS/ucd-snmp-4.2.3-1.2mdk.i586.rpm
 489abc125f1f09f96b4216227c9780e4  snf7.2/RPMS/ucd-snmp-utils-4.2.3-1.2mdk.i586.rpm
 62f371ebe47a178f22eea04a46be0133  snf7.2/SRPMS/ucd-snmp-4.2.3-1.2mdk.src.rpm
________________________________________________________________________

Bug IDs fixed (see https://qa.mandrakesoft.com for more information):

________________________________________________________________________

To upgrade automatically, use MandrakeUpdate.  The verification of md5
checksums and GPG signatures is performed automatically for you.

If you want to upgrade manually, download the updated package from one 
of our FTP server mirrors and upgrade with "rpm -Fvh *.rpm".  A list of
FTP mirrors can be obtained from:

  http://www.mandrakesecure.net/en/ftp.php

Please verify the update prior to upgrading to ensure the integrity of
the downloaded package.  You can do this with the command:

  rpm --checksig <filename>

All packages are signed by MandrakeSoft for security.  You can obtain
the GPG public key of the Mandrake Linux Security Team from:

  https://www.mandrakesecure.net/RPM-GPG-KEYS

Please be aware that sometimes it takes the mirrors a few hours to 
update.

You can view other update advisories for Mandrake Linux at:

  http://www.mandrakesecure.net/en/advisories/

MandrakeSoft has several security-related mailing list services that
anyone can subscribe to.  Information on these lists can be obtained by
visiting:

  http://www.mandrakesecure.net/en/mlist.php

If you want to report vulnerabilities, please contact

  security@linux-mandrake.com
________________________________________________________________________

Type Bits/KeyID     Date       User ID
pub  1024D/22458A98 2000-07-10 Linux Mandrake Security Team
  <security@linux-mandrake.com>


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