CVE-2020-29379

An issue was discovered on V-SOL V1600D4L V1.01.49 and V1600D-MINI V1.01.48 OLT devices. During the process of updating the firmware, the update script starts a telnetd -l /bin/sh process that does not require authentication for TELNET access.

CVSS v3 5.5 MEDIUM
CVSS v2.0 2.1 LOW

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

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

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://seclists.org/fulldisclosure/2020/Jul/14	Exploit Mailing List Third Party Advisory
https://seclists.org/fulldisclosure/2020/Jul/14	Exploit Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:vsolcn:v1600d4l_firmware:1.01.49:*:*:*:*:*:*:*

cpe:2.3:h:vsolcn:v1600d4l:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:vsolcn:v1600d-mini_firmware:1.01.48:*:*:*:*:*:*:*

cpe:2.3:h:vsolcn:v1600d-mini:-:*:*:*:*:*:*:*

History

21 Nov 2024, 05:23

Type	Values Removed	Values Added
References	~~() https://seclists.org/fulldisclosure/2020/Jul/14 - Exploit, Mailing List, Third Party Advisory~~	() https://seclists.org/fulldisclosure/2020/Jul/14 - Exploit, Mailing List, Third Party Advisory

Information

Published : 2020-11-29 01:15

Updated : 2024-11-21 05:23

NVD link : CVE-2020-29379

Mitre link : CVE-2020-29379

CVE.ORG link : CVE-2020-29379

JSON object : View

Products Affected

vsolcn

v1600d4l_firmware
v1600d4l
v1600d-mini
v1600d-mini_firmware

CWE

CWE-306

Missing Authentication for Critical Function

{"id": "CVE-2020-29379", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 2.1, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:N/I:P/A:N", "authentication": "NONE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "LOW", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2020-11-29T01:15:11.083", "references": [{"url": "https://seclists.org/fulldisclosure/2020/Jul/14", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://seclists.org/fulldisclosure/2020/Jul/14", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-306"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered on V-SOL V1600D4L V1.01.49 and V1600D-MINI V1.01.48 OLT devices. During the process of updating the firmware, the update script starts a telnetd -l /bin/sh process that does not require authentication for TELNET access."}, {"lang": "es", "value": "Se detect\u00f3 un problema en los dispositivos OLT V-SOL V1600D4L versi\u00f3n V1.01.49 y V1600D-MINI versi\u00f3n V1.01.48. Durante el proceso de actualizaci\u00f3n del firmware, el script de actualizaci\u00f3n inicia un proceso telnetd -l /bin/sh que no requiere autenticaci\u00f3n para el acceso TELNET"}], "lastModified": "2024-11-21T05:23:57.333", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:vsolcn:v1600d4l_firmware:1.01.49:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6441837A-B3BA-4CB6-8507-40D089DC82BA"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:vsolcn:v1600d4l:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "DF4991AB-71EA-4DF1-8142-E13985017197"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:vsolcn:v1600d-mini_firmware:1.01.48:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C40945D6-0A82-4EF6-8665-E177184874DE"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:vsolcn:v1600d-mini:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "B8407505-E9A3-4435-A8CC-70BD24245516"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "cve@mitre.org"}