CVE-2021-31893

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.
References
Configurations

Configuration 1 (hide)

AND
OR cpe:2.3:o:siemens:simatic_pcs_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_pcs_firmware:9.0:-:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_pcs_firmware:9.0:sp1:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_pcs_firmware:9.0:sp2:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_pcs:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND
cpe:2.3:o:siemens:simatic_pdm_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_pdm:-:*:*:*:*:*:*:*

Configuration 3 (hide)

AND
cpe:2.3:o:siemens:simatic_step_7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_step_7:-:*:*:*:*:*:*:*

Configuration 4 (hide)

AND
OR cpe:2.3:o:siemens:sinamics_starter_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:-:*:*:*:*:*:*
cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:hotfix_1:*:*:*:*:*:*
cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:hotfix_2:*:*:*:*:*:*
cpe:2.3:h:siemens:sinamics_starter:-:*:*:*:*:*:*:*

History

06 Aug 2021, 14:03

Type Values Removed Values Added
CPE cpe:2.3:o:siemens:sinamics_starter_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_pcs_firmware:9.0:-:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_step_7:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:hotfix_1:*:*:*:*:*:*
cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:-:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_pdm_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_pcs_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_step_7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:hotfix_2:*:*:*:*:*:*
cpe:2.3:h:siemens:sinamics_starter:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_pcs_firmware:9.0:sp1:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_pcs:-:*:*:*:*:*:*:*
cpe:2.3:o:siemens:simatic_pcs_firmware:9.0:sp2:*:*:*:*:*:*
cpe:2.3:h:siemens:simatic_pdm:-:*:*:*:*:*:*:*
References (CONFIRM) https://cert-portal.siemens.com/productcert/pdf/ssa-641963.pdf - (CONFIRM) https://cert-portal.siemens.com/productcert/pdf/ssa-641963.pdf - Patch, Vendor Advisory
CVSS v2 : unknown
v3 : unknown
v2 : 7.2
v3 : 7.8
CWE CWE-120

13 Jul 2021, 12:15

Type Values Removed Values Added
Summary 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. 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.

13 Jul 2021, 11:31

Type Values Removed Values Added
New CVE

Information

Published : 2021-07-13 11:15

Updated : 2023-12-10 13:55


NVD link : CVE-2021-31893

Mitre link : CVE-2021-31893

CVE.ORG link : CVE-2021-31893


JSON object : View

Products Affected

siemens

  • simatic_pcs
  • simatic_step_7_firmware
  • sinamics_starter
  • simatic_pdm_firmware
  • simatic_pcs_firmware
  • simatic_pdm
  • simatic_step_7
  • sinamics_starter_firmware
CWE
CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')