Vulnerability CVE-2003-0147


Published: 2003-03-31   Modified: 2012-02-12

Description:
OpenSSL does not use RSA blinding by default, which allows local and remote attackers to obtain the server's private key by determining factors using timing differences on (1) the number of extra reductions during Montgomery reduction, and (2) the use of different integer multiplication algorithms ("Karatsuba" and normal).

Type:

CWE-Other

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Stunnel -> Stunnel 
Openssl -> Openssl 
Openpkg -> Openpkg 

 References:
ftp://ftp.sco.com/pub/security/OpenLinux/CSSA-2003-014.0.txt
ftp://patches.sgi.com/support/free/security/advisories/20030501-01-I
http://archives.neohapsis.com/archives/vulnwatch/2003-q1/0130.html
http://crypto.stanford.edu/~dabo/papers/ssl-timing.pdf
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000625
http://marc.info/?l=bugtraq&m=104766550528628&w=2
http://marc.info/?l=bugtraq&m=104792570615648&w=2
http://marc.info/?l=bugtraq&m=104819602408063&w=2
http://marc.info/?l=bugtraq&m=104829040921835&w=2
http://marc.info/?l=bugtraq&m=104861762028637&w=2
http://www.debian.org/security/2003/dsa-288
http://www.gentoo.org/security/en/glsa/glsa-200303-23.xml
http://www.kb.cert.org/vuls/id/997481
http://www.mandrakesecure.net/en/advisories/advisory.php?name=MDKSA-2003:035
http://www.openpkg.com/security/advisories/OpenPKG-SA-2003.019.html
http://www.openssl.org/news/secadv_20030317.txt
http://www.redhat.com/support/errata/RHSA-2003-101.html
http://www.redhat.com/support/errata/RHSA-2003-102.html
http://www.securityfocus.com/archive/1/316165/30/25370/threaded
http://www.securityfocus.com/archive/1/316577/30/25310/threaded
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A466

Copyright 2024, cxsecurity.com

 

Back to Top