CVE-2010-0928 - OpenSSL 0.9.8i on the Gaisler Research LEON3 SoC on the Xilinx Virtex-II Pro FPGA uses a Fixed Width

CVE-2010-0928

Summary

OpenSSL 0.9.8i on the Gaisler Research LEON3 SoC on the Xilinx Virtex-II Pro FPGA uses a Fixed Width Exponentiation (FWE) algorithm for certain signature calculations, and does not verify the signature before providing it to a caller, which makes it easier for physically proximate attackers to determine the private key via a modified supply voltage for the microprocessor, related to a "fault-based attack."

References

Vulnerable Configurations

cpe:2.3:a:openssl:openssl:0.9.8i:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.8i:*:*:*:*:*:*:*
cpe:2.3:h:gaisler:leon3_soc:*:*:*:*:*:*:*:*
cpe:2.3:h:gaisler:leon3_soc:*:*:*:*:*:*:*:*
cpe:2.3:h:xilinx:virtex-ii_pro_fpga:*:*:*:*:*:*:*:*
cpe:2.3:h:xilinx:virtex-ii_pro_fpga:*:*:*:*:*:*:*:*

CVSS

Base:	4.0 (as of 17-08-2017 - 01:32)
Impact:
Exploitability:

CWE

CWE-310

CAPEC

Signature Spoofing by Key Recreation
An attacker obtains an authoritative or reputable signer's private signature key by exploiting a cryptographic weakness in the signature algorithm or pseudorandom number generation and then uses this key to forge signatures from the original signer to mislead a victim into performing actions that benefit the attacker.

Access

Vector	Complexity	Authentication
LOCAL	HIGH	NONE

Impact

Confidentiality	Integrity	Availability
COMPLETE	NONE	NONE

cvss-vector via4

AV:L/AC:H/Au:N/C:C/I:N/A:N

refmap via4

misc	http://rdist.root.org/2010/03/08/attacking-rsa-exponentiation-with-fault-injection/ http://www.eecs.umich.edu/%7Evaleria/research/publications/DATE10RSA.pdf http://www.networkworld.com/news/2010/030410-rsa-security-attack.html http://www.theregister.co.uk/2010/03/04/severe_openssl_vulnerability/
osvdb	62808
xf	openssl-fwe-weak-security(56750)

statements via4

contributor	Mark Cox
lastmodified	2010-03-08
organization	Red Hat
statement	CVE-2010-0928 describes a fault-based attack on OpenSSL where an attacker has precise control over the target system environment in order to be able to introduce faults through power supply manipulation. The attack is not a viable threat to OpenSSL as used in Red Hat products. The Red Hat Security Response Team has rated this issue as having low security impact and we do not intend to issue updates to address it.

Last major update

17-08-2017 - 01:32

Published

05-03-2010 - 19:30

Last modified

17-08-2017 - 01:32