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ID

VAR-202101-0348


CVE

CVE-2020-26987


TITLE

Siemens JT2Go TGA File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

Trust: 1.4

sources: ZDI: ZDI-21-061 // ZDI: ZDI-21-059

DESCRIPTION

A vulnerability has been identified in JT2Go (All versions < V13.1.0), Teamcenter Visualization (All versions < V13.1.0). Affected applications lack proper validation of user-supplied data when parsing of TGA files. This could lead to a heap-based buffer overflow. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-12016, ZDI-CAN-12017). JT2Go and Teamcenter Visualization Is vulnerable to an out-of-bounds write. Zero Day Initiative To this vulnerability ZDI-CAN-12016 and ZDI-CAN-12017 Was numbered.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.The specific flaw exists within the processing of TGA files. JT2Go is a 3D JT viewing tool that allows users to view JT, PDF, Solid Edge, PLM XML and existing JT, VFZ, CGM, TIF data. Teamcenter visualization software enables companies to enhance their product lifecycle management (PLM) environment. The software enables corporate users to access documents, 2D drawings and 3D models in a single environment

Trust: 3.42

sources: NVD: CVE-2020-26987 // JVNDB: JVNDB-2020-015269 // ZDI: ZDI-21-061 // ZDI: ZDI-21-059 // CNVD: CNVD-2021-02584

IOT TAXONOMY

category:['IoT']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2021-02584

AFFECTED PRODUCTS

vendor:siemensmodel:jt2goscope: - version: -

Trust: 1.4

vendor:siemensmodel:teamcenter visualizationscope:ltversion:13.1.0

Trust: 1.0

vendor:siemensmodel:jt2goscope:ltversion:13.1.0

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vendor:シーメンスmodel:teamcenter visualizationscope:eqversion:13.1.0

Trust: 0.8

vendor:シーメンスmodel:jt2goscope: - version: -

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vendor:siemensmodel:jt2goscope:ltversion:v13.1.0

Trust: 0.6

vendor:siemensmodel:teamcenter visualizationscope:ltversion:v13.1.0

Trust: 0.6

sources: ZDI: ZDI-21-061 // ZDI: ZDI-21-059 // CNVD: CNVD-2021-02584 // JVNDB: JVNDB-2020-015269 // NVD: CVE-2020-26987

CVSS

SEVERITY

CVSSV2

CVSSV3

ZDI: CVE-2020-26987
value: HIGH

Trust: 1.4

nvd@nist.gov: CVE-2020-26987
value: HIGH

Trust: 1.0

NVD: CVE-2020-26987
value: HIGH

Trust: 0.8

CNVD: CNVD-2021-02584
value: HIGH

Trust: 0.6

CNNVD: CNNVD-202101-849
value: HIGH

Trust: 0.6

nvd@nist.gov: CVE-2020-26987
severity: MEDIUM
baseScore: 6.8
vectorString: AV:N/AC:M/AU:N/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: MEDIUM
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 8.6
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.8

CNVD: CNVD-2021-02584
severity: HIGH
baseScore: 7.2
vectorString: AV:L/AC:L/AU:N/C:C/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

ZDI: CVE-2020-26987
baseSeverity: HIGH
baseScore: 7.8
vectorString: AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 1.8
impactScore: 5.9
version: 3.0

Trust: 1.4

nvd@nist.gov: CVE-2020-26987
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 2.8
impactScore: 5.9
version: 3.1

Trust: 1.0

NVD: CVE-2020-26987
baseSeverity: HIGH
baseScore: 8.8
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: REQUIRED
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: ZDI: ZDI-21-061 // ZDI: ZDI-21-059 // CNVD: CNVD-2021-02584 // JVNDB: JVNDB-2020-015269 // CNNVD: CNNVD-202101-849 // NVD: CVE-2020-26987

PROBLEMTYPE DATA

problemtype:CWE-122

Trust: 1.0

problemtype:CWE-787

Trust: 1.0

problemtype:Out-of-bounds writing (CWE-787) [NVD Evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2020-015269 // NVD: CVE-2020-26987

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202101-849

TYPE

buffer error

Trust: 0.6

sources: CNNVD: CNNVD-202101-849

PATCH

title:Siemens has issued an update to correct this vulnerability.url:https://us-cert.cisa.gov/ics/advisories/icsa-21-012-03/

Trust: 1.4

title:SSA-622830url:https://cert-portal.siemens.com/productcert/pdf/ssa-622830.pdf

Trust: 0.8

title:Patch for JT2Go and Teamcenter Visualization heap buffer overflow vulnerability (CNVD-2021-02584)url:https://www.cnvd.org.cn/patchInfo/show/243988

Trust: 0.6

title:Siemens Jt2go and Siemens Teamcenter Visualization Buffer error vulnerability fixurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=139360

Trust: 0.6

sources: ZDI: ZDI-21-061 // ZDI: ZDI-21-059 // CNVD: CNVD-2021-02584 // JVNDB: JVNDB-2020-015269 // CNNVD: CNNVD-202101-849

EXTERNAL IDS

db:NVDid:CVE-2020-26987

Trust: 4.4

db:ZDIid:ZDI-21-061

Trust: 3.1

db:ZDIid:ZDI-21-059

Trust: 3.1

db:SIEMENSid:SSA-622830

Trust: 2.2

db:JVNid:JVNVU91685542

Trust: 0.8

db:JVNDBid:JVNDB-2020-015269

Trust: 0.8

db:ZDI_CANid:ZDI-CAN-12016

Trust: 0.7

db:ZDI_CANid:ZDI-CAN-12017

Trust: 0.7

db:CNVDid:CNVD-2021-02584

Trust: 0.6

db:AUSCERTid:ESB-2021.0125

Trust: 0.6

db:ICS CERTid:ICSA-21-012-03

Trust: 0.6

db:CNNVDid:CNNVD-202101-849

Trust: 0.6

sources: ZDI: ZDI-21-061 // ZDI: ZDI-21-059 // CNVD: CNVD-2021-02584 // JVNDB: JVNDB-2020-015269 // CNNVD: CNNVD-202101-849 // NVD: CVE-2020-26987

REFERENCES

url:https://www.zerodayinitiative.com/advisories/zdi-21-059/

Trust: 2.4

url:https://www.zerodayinitiative.com/advisories/zdi-21-061/

Trust: 2.4

url:https://cert-portal.siemens.com/productcert/pdf/ssa-622830.pdf

Trust: 2.2

url:https://us-cert.cisa.gov/ics/advisories/icsa-21-012-03/

Trust: 1.4

url:https://nvd.nist.gov/vuln/detail/cve-2020-26987

Trust: 1.4

url:https://jvn.jp/vu/jvnvu91685542/

Trust: 0.8

url:https://us-cert.cisa.gov/ics/advisories/icsa-21-012-03

Trust: 0.6

url:https://www.auscert.org.au/bulletins/esb-2021.0125/

Trust: 0.6

sources: ZDI: ZDI-21-061 // ZDI: ZDI-21-059 // CNVD: CNVD-2021-02584 // JVNDB: JVNDB-2020-015269 // CNNVD: CNNVD-202101-849 // NVD: CVE-2020-26987

CREDITS

rgod

Trust: 1.4

sources: ZDI: ZDI-21-061 // ZDI: ZDI-21-059

SOURCES

db:ZDIid:ZDI-21-061
db:ZDIid:ZDI-21-059
db:CNVDid:CNVD-2021-02584
db:JVNDBid:JVNDB-2020-015269
db:CNNVDid:CNNVD-202101-849
db:NVDid:CVE-2020-26987

LAST UPDATE DATE

2024-08-14T12:08:06.929000+00:00


SOURCES UPDATE DATE

db:ZDIid:ZDI-21-061date:2021-01-14T00:00:00
db:ZDIid:ZDI-21-059date:2021-01-14T00:00:00
db:CNVDid:CNVD-2021-02584date:2021-01-13T00:00:00
db:JVNDBid:JVNDB-2020-015269date:2021-09-15T08:33:00
db:CNNVDid:CNNVD-202101-849date:2021-02-23T00:00:00
db:NVDid:CVE-2020-26987date:2021-02-22T19:53:05.857

SOURCES RELEASE DATE

db:ZDIid:ZDI-21-061date:2021-01-14T00:00:00
db:ZDIid:ZDI-21-059date:2021-01-14T00:00:00
db:CNVDid:CNVD-2021-02584date:2021-01-13T00:00:00
db:JVNDBid:JVNDB-2020-015269date:2021-09-15T00:00:00
db:CNNVDid:CNNVD-202101-849date:2021-01-12T00:00:00
db:NVDid:CVE-2020-26987date:2021-01-12T21:15:17.057