CVE-2020-24753

A memory corruption vulnerability in Objective Open CBOR Run-time (oocborrt) in versions before 2020-08-12 could allow an attacker to execute code via crafted Concise Binary Object Representation (CBOR) input to the cbor2json decoder. An uncaught error while decoding CBOR Major Type 3 text strings leads to the use of an attacker-controllable uninitialized stack value. This can be used to modify memory, causing a crash or potentially exploitable heap corruption.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/objsys/oocborrt/commit/539851c66778f68a244633985f6f8d0df94ea3b3	Patch Third Party Advisory
https://warcollar.com/cve-2020-24753.html	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:objective_open_cbor_run-time_project:objective_open_cbor_run-time:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-09-17 18:15

Updated : 2024-02-04 21:00

NVD link : CVE-2020-24753

Mitre link : CVE-2020-24753

CVE.ORG link : CVE-2020-24753

JSON object : View

Products Affected

objective_open_cbor_run-time_project

objective_open_cbor_run-time

CWE

CWE-755

Improper Handling of Exceptional Conditions

CWE-787

Out-of-bounds Write

CWE-908

Use of Uninitialized Resource

{"id": "CVE-2020-24753", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 3.9}]}, "published": "2020-09-17T18:15:12.320", "references": [{"url": "https://github.com/objsys/oocborrt/commit/539851c66778f68a244633985f6f8d0df94ea3b3", "tags": ["Patch", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://warcollar.com/cve-2020-24753.html", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-755"}, {"lang": "en", "value": "CWE-787"}, {"lang": "en", "value": "CWE-908"}]}], "descriptions": [{"lang": "en", "value": "A memory corruption vulnerability in Objective Open CBOR Run-time (oocborrt) in versions before 2020-08-12 could allow an attacker to execute code via crafted Concise Binary Object Representation (CBOR) input to the cbor2json decoder. An uncaught error while decoding CBOR Major Type 3 text strings leads to the use of an attacker-controllable uninitialized stack value. This can be used to modify memory, causing a crash or potentially exploitable heap corruption."}, {"lang": "es", "value": "Una vulnerabilidad de corrupci\u00f3n de la memoria en Objective Open CBOR Run-time (oocborrt) en versiones anteriores al 12-08-2020, podr\u00eda permitir a un atacante ejecutar c\u00f3digo por medio de la entrada de Concise Binary Object Representation (CBOR) hacia el decodificador cbor2json. Un error no detectado al decodificar cadenas de texto CBOR Major Type 3 conlleva al uso de un valor de pila no inicializado controlable por el atacante. Esto puede ser usado para modificar la memoria, causando un bloqueo o una corrupci\u00f3n de la pila potencialmente explotable"}], "lastModified": "2021-07-21T11:39:23.747", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:objective_open_cbor_run-time_project:objective_open_cbor_run-time:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "05A036E7-88E5-451A-A98B-B22EB94A0C49", "versionEndExcluding": "2020-08-12"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}