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nvd[email protected]NVD:CVE-2021-31893
HistoryJul 13, 2021 - 11:15 a.m.

CVE-2021-31893

2021-07-1311:15:09
CWE-120
[email protected]
web.nvd.nist.gov
3
siemens simatic
buffer overflow
denial-of-service
remote code execution

CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

38.5%

JSON

A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All versions < V9.2), SIMATIC STEP 7 V5.X (All versions < V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 HF2). The affected software contains a buffer overflow vulnerability while handling certain files that could allow a local attacker to trigger a denial-of-service condition or potentially lead to remote code execution.

Affected configurations

Nvd
Node
siemenssimatic_pcs_firmwareRange≤8.2
OR
siemenssimatic_pcs_firmwareMatch9.0-
OR
siemenssimatic_pcs_firmwareMatch9.0sp1
OR
siemenssimatic_pcs_firmwareMatch9.0sp2
AND
siemenssimatic_pcsMatch-
Node
siemenssimatic_pdm_firmwareRange<9.2
AND
siemenssimatic_pdmMatch-
Node
siemenssimatic_step_7_firmwareRange≤5.6
AND
siemenssimatic_step_7Match-
Node
siemenssinamics_starter_firmwareRange<5.4
OR
siemenssinamics_starter_firmwareMatch5.4-
OR
siemenssinamics_starter_firmwareMatch5.4hotfix_1
OR
siemenssinamics_starter_firmwareMatch5.4hotfix_2
AND
siemenssinamics_starterMatch-
VendorProductVersionCPE
siemenssimatic_pcs_firmware*cpe:2.3:o:siemens:simatic_pcs_firmware:*:*:*:*:*:*:*:*
siemenssimatic_pcs_firmware9.0cpe:2.3:o:siemens:simatic_pcs_firmware:9.0:-:*:*:*:*:*:*
siemenssimatic_pcs_firmware9.0cpe:2.3:o:siemens:simatic_pcs_firmware:9.0:sp1:*:*:*:*:*:*
siemenssimatic_pcs_firmware9.0cpe:2.3:o:siemens:simatic_pcs_firmware:9.0:sp2:*:*:*:*:*:*
siemenssimatic_pcs-cpe:2.3:h:siemens:simatic_pcs:-:*:*:*:*:*:*:*
siemenssimatic_pdm_firmware*cpe:2.3:o:siemens:simatic_pdm_firmware:*:*:*:*:*:*:*:*
siemenssimatic_pdm-cpe:2.3:h:siemens:simatic_pdm:-:*:*:*:*:*:*:*
siemenssimatic_step_7_firmware*cpe:2.3:o:siemens:simatic_step_7_firmware:*:*:*:*:*:*:*:*
siemenssimatic_step_7-cpe:2.3:h:siemens:simatic_step_7:-:*:*:*:*:*:*:*
siemenssinamics_starter_firmware*cpe:2.3:o:siemens:sinamics_starter_firmware:*:*:*:*:*:*:*:*
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CVSS2

7.2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

38.5%

JSON
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