ID 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
VectorComplexityAuthentication
LOCAL HIGH NONE
Impact
ConfidentialityIntegrityAvailability
COMPLETE NONE NONE
cvss-vector via4 AV:L/AC:H/Au:N/C:C/I:N/A:N
refmap via4
misc
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
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