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nvd[email protected]NVD:CVE-2020-28395
HistoryJan 12, 2021 - 9:15 p.m.

CVE-2020-28395

2021-01-1221:15:18
CWE-798
CWE-321
web.nvd.nist.gov
5
vulnerability
scalance switches
man-in-the-middle
decrypt traffic
cve-2020-28395

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.001

Percentile

41.2%

A vulnerability has been identified in SCALANCE X-200RNA switch family (All versions < V3.2.7), SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants) (All versions < V4.1.0). Devices do not create a new unique private key after factory reset. An attacker could leverage this situation to a man-in-the-middle situation and decrypt previously captured traffic.

Affected configurations

Nvd
Node
siemensscalance_xr324-12m_firmwareRange<4.1.0
AND
siemensscalance_xr324-12mMatch-
Node
siemensscalance_xr324-12m_ts_firmwareRange<4.1.0
AND
siemensscalance_xr324-12m_tsMatch-
Node
siemensscalance_xr324-4m_eec_firmwareRange<4.1.0
AND
siemensscalance_xr324-4m_eecMatch-
Node
siemensscalance_xr324-4m_poe_firmwareRange<4.1.0
AND
siemensscalance_xr324-4m_poeMatch-
Node
siemensscalance_xr324-4m_poe_ts_firmwareRange<4.1.0
AND
siemensscalance_xr324-4m_poe_tsMatch-
Node
siemensscalance_xr324wg_firmwareRange<4.1.0
AND
siemensscalance_xr324wgMatch-
Node
siemensscalance_xr326-2c_poe_wg_firmwareRange<4.1.0
AND
siemensscalance_xr326-2c_poe_wgMatch-
Node
siemensscalance_xr328-4c_wg_firmwareRange<4.1.0
AND
siemensscalance_xr328-4c_wgMatch-
VendorProductVersionCPE
siemensscalance_xr324-12m_firmware*cpe:2.3:o:siemens:scalance_xr324-12m_firmware:*:*:*:*:*:*:*:*
siemensscalance_xr324-12m-cpe:2.3:h:siemens:scalance_xr324-12m:-:*:*:*:*:*:*:*
siemensscalance_xr324-12m_ts_firmware*cpe:2.3:o:siemens:scalance_xr324-12m_ts_firmware:*:*:*:*:*:*:*:*
siemensscalance_xr324-12m_ts-cpe:2.3:h:siemens:scalance_xr324-12m_ts:-:*:*:*:*:*:*:*
siemensscalance_xr324-4m_eec_firmware*cpe:2.3:o:siemens:scalance_xr324-4m_eec_firmware:*:*:*:*:*:*:*:*
siemensscalance_xr324-4m_eec-cpe:2.3:h:siemens:scalance_xr324-4m_eec:-:*:*:*:*:*:*:*
siemensscalance_xr324-4m_poe_firmware*cpe:2.3:o:siemens:scalance_xr324-4m_poe_firmware:*:*:*:*:*:*:*:*
siemensscalance_xr324-4m_poe-cpe:2.3:h:siemens:scalance_xr324-4m_poe:-:*:*:*:*:*:*:*
siemensscalance_xr324-4m_poe_ts_firmware*cpe:2.3:o:siemens:scalance_xr324-4m_poe_ts_firmware:*:*:*:*:*:*:*:*
siemensscalance_xr324-4m_poe_ts-cpe:2.3:h:siemens:scalance_xr324-4m_poe_ts:-:*:*:*:*:*:*:*
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CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS3

5.9

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.001

Percentile

41.2%

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