Description
Siemens Desigo PX Web modules PXA40-W0, PXA40-W1, PXA40-W2 for Desigo PX automation controllers PXC00-E.D, PXC50-E.D, PXC100-E.D, PXC200-E.D (All firmware versions < V6.00.046) and Desigo PX Web modules PXA30-W0, PXA30-W1, PXA30-W2 for Desigo PX automation controllers PXC00-U, PXC64-U, PXC128-U (All firmware versions < V6.00.046) use a pseudo random number generator with insufficient entropy to generate certificates for HTTPS, potentially allowing remote attackers to reconstruct the corresponding private key.
References (3)
Core 3
Core References
Mitigation, Vendor Advisory x_refsource_confirm
http://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-856492.pdf
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/94962
Third Party Advisory, US Government Resource x_refsource_misc
https://ics-cert.us-cert.gov/advisories/ICSA-16-355-01
Scores
CVSS v3
7.5
EPSS
0.0117
EPSS Percentile
78.9%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-332
Status
published
Products (7)
n/a/Desigo PX Web modules with all firmware versions < V6.00.046
Desigo PX Web modules with all firmware versions < V6.00.046
siemens/desigo_web_module_pxa30-w0_firmware
< 6.00.00
siemens/desigo_web_module_pxa30-w1_firmware
< 6.00.00
siemens/desigo_web_module_pxa30-w2_firmware
< 6.00.00
siemens/desigo_web_module_pxa40-w0_firmware
< 6.00.00
siemens/desigo_web_module_pxa40-w1_firmware
< 6.00.00
siemens/desigo_web_module_pxa40-w2_firmware
< 6.00.00
Published
Dec 23, 2016
Tracked Since
Feb 18, 2026