| 詳細參數(shù) | |||
|---|---|---|---|
| 品牌 | 其他 | 型號 | 100031593.10LSU-112DG |
| 結(jié)構(gòu)形式 | 模塊式 | 安裝方式 | 控制室安裝 |
| LD指令處理器 | 硬PLC | 加工定制 | 否 |
100031593.10 LSU-112DG
The new OPERA security specification is quite similar to IEEE 802.11i. Although this standard was developed to overcome vulnerabilities of previous standards, it has still potential vulnerabilities [15]. A first vulnerability is the so called rollback attack, an attack that does not seem possible in the new specification because it does not include the WEP and TKIP options of
The previously mentioned chain of trust should not be subject of concern because there is a chain of trust from the source authority to the supplicant and chains are of limited length. Nevertheless it is reasonable to think that there would be some slight degradation of security in very long chains. Another possible source of vulnerabilities in chains could come in relation to the rerouting of messages due to failures or transient situations but we have not been able to find any.
Still there remain some possible DoS attacks in layer 2. Forging of management messages is possible. The solution is to authenticate management frames but here there is atrade-off between security and efficiency. Access Request and Access Reply Frames cannot be authenticated but OPERA is not vulnerable to attacks such as flooding of requests because the access process in OPERA is compleby controlled by the Authenticator. A special DoS attack for OPERA Phase1 is forging bit loading messages which in the current specification are sent unencrypted. The proposal is to also encrypt these messages.
ABB CI520V1
ABB CI610
ABB CI615
ABB CI626
ABB CI626V1
ABB CI810B
ABB CM572
ABB CP450-T-ETH
ABB CR-M4LS
ABB D-20-0-1102
ABB DAI03
ABB DAO01
ABB DC532
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ABB DSPC406
ABB DSQC202
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ABB DSQC627 3HAC020466-001
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ABB DSU10
ABB DSU14
ABB EHDB130
ABB EHDB280
ABB EI803F
ABB FI830F
ABB HK-11
ABB IMDSI14
ABB IMDSO14
ABB IMFEC12
ABB IMMFP12
ABB IMMPI01
ABB IMSED01
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ABB INNIS01
ABB INNPM12
ABB L110-24-1
ABB M2004HW
ABB MSR04XI
ABB NAIO-03
ABB NTAC-02
ABB P-HA-RPS-32000000
ABB P-HA-RPS-32200000
ABB PM510V16
ABB PM511V16
