CVE-2020-7586

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). A buffer overflow vulnerability could allow a local attacker to cause a Denial-of-Service situation. The security vulnerability could be exploited by an attacker with local access to the affected systems. Successful exploitation requires user privileges but no user interaction. The vulnerability could allow an attacker to compromise the availability of the system as well as to have access to confidential information.

CVSS v3 7.8 HIGH
CVSS v2.0 4.6 MEDIUM

7.8^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

4.6^/10

CVSS v2.0 : MEDIUM

V2 Legend

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

Exploitability : 3.9 / Impact : 6.4

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-689942.pdf	Vendor Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-20-161-05
https://www.us-cert.gov/ics/advisories/icsa-20-161-05	Third Party Advisory US Government Resource

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:siemens:simatic_pcs_7::::::::
	cpe:2.3:a:siemens:simatic_process_device_manager::::::::
	cpe:2.3:a:siemens:simatic_step_7::::::::
	cpe:2.3:a:siemens:simatic_step_7:5.6:-::::::
	cpe:2.3:a:siemens:simatic_step_7:5.6:sp1::::::
	cpe:2.3:a:siemens:simatic_step_7:5.6:sp2::::::
	cpe:2.3:a:siemens:simatic_step_7:5.6:sp2_hotfix1::::::
	cpe:2.3:a:siemens:sinamics_starter::::::::
	cpe:2.3:a:siemens:sinamics_starter:5.4:-::::::

History

No history.

Information

Published : 2020-06-10 17:15

Updated : 2021-04-22 21:15

NVD link : CVE-2020-7586

Mitre link : CVE-2020-7586

CVE.ORG link : CVE-2020-7586

JSON object : View

Products Affected

siemens

simatic_process_device_manager
sinamics_starter
simatic_step_7
simatic_pcs_7

CWE

CWE-122

Heap-based Buffer Overflow

CWE-787

Out-of-bounds Write

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A buffer overflow vulnerability could allow a local attacker to cause a Denial-of-Service situation. The security vulnerability could be exploited by an attacker with local access to the affected systems. Successful exploitation requires user privileges but no user interaction. The vulnerability could allow an attacker to compromise the availability of the system as well as to have access to confidential information."}, {"lang": "es", "value": "Se ha identificado una vulnerabilidad en SIMATIC PCS 7 versi\u00f3n V8.2 y anteriores (Todas las versiones), SIMATIC PCS 7 V9.0 (Todas las versiones anteriores a V9.0 SP3), SIMATIC PDM (Todas las versiones anteriores a V9.2), SIMATIC STEP 7 V5.X (Todas las versiones anteriores a V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (Todas las versiones anteriores a V5.4 HF2). Una vulnerabilidad de desbordamiento del b\u00fafer podr\u00eda permitir a un atacante local causar una situaci\u00f3n de Denegaci\u00f3n de Servicio. La vulnerabilidad de seguridad podr\u00eda ser explotada por parte de un atacante con acceso local a los sistemas afectados. Una explotaci\u00f3n con \u00e9xito podr\u00eda requerir privilegios de usuario pero no una interacci\u00f3n del usuario. La vulnerabilidad podr\u00eda permitir a un atacante comprometer la disponibilidad del sistema, as\u00ed como tener acceso a informaci\u00f3n confidencial"}], "lastModified": "2021-04-22T21:15:09.470", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:siemens:simatic_pcs_7:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "13E3BDF0-B691-4A97-A74A-A65EC910480E"}, {"criteria": "cpe:2.3:a:siemens:simatic_process_device_manager:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "50C02E17-87F5-47DB-B4F3-EFC44B0DFC88"}, {"criteria": "cpe:2.3:a:siemens:simatic_step_7:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CAF09D6E-3375-4731-B16D-30B7592EA5FB", "versionEndExcluding": "5.6"}, {"criteria": "cpe:2.3:a:siemens:simatic_step_7:5.6:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "851F8474-4568-487D-98FB-47DF7EAEAC3B"}, {"criteria": "cpe:2.3:a:siemens:simatic_step_7:5.6:sp1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "81EADA2F-884C-4D72-8489-71025B3EBAEE"}, {"criteria": "cpe:2.3:a:siemens:simatic_step_7:5.6:sp2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "78366D2F-B728-47F6-B539-5FB2D1B0419D"}, {"criteria": "cpe:2.3:a:siemens:simatic_step_7:5.6:sp2_hotfix1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "06A86DA0-BC1F-4306-B02E-ED2FA36BE273"}, {"criteria": "cpe:2.3:a:siemens:sinamics_starter:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "23020179-5112-48A8-BA76-EB6C073867BF", "versionEndExcluding": "5.4"}, {"criteria": "cpe:2.3:a:siemens:sinamics_starter:5.4:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E04348B3-6DAC-49E2-A612-FE0A3166776B"}], "operator": "OR"}]}], "sourceIdentifier": "productcert@siemens.com"}

7.8 /10