CVE-2019-1836

mediumPriorität · verfolgen · 28EPSS 0.004 · 38. PerzentilEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.44% (38th) EPSS

CVSS 6.6 · medium

Is it mine?

4 products

Prüfe deine Angriffsfläche

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · bewertet 2026-10-27

A vulnerability in the system shell for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode could allow an authenticated, local attacker to use symbolic links to overwrite system files. These system files may be sensitive and should not be overwritable by non-root users. The attacker would need valid device credentials. The vulnerability is due to incorrect symbolic link verification of directory paths when they are used in the system shell. An attacker could exploit this vulnerability by authenticating to the device and providing crafted user input to specific symbolic link CLI commands. Successful exploitation could allow the attacker to overwrite system files that should be restricted. This vulnerability has been fixed in software version 14.1(1i).

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

BehobenCisco NX-OS System Software in ACI Modecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

7.1

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 5.5–7.1

v2.06.6mediumAV:L/AC:L/Au:N/C:N/I:C/A:Cprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 9.2

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Hprimary · NVD / NIST USAusnutzbarkeit 1.8 · Auswirkung 5.2

v3.05.5mediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Nsecondary · ENISA EU

v3.05.5mediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Nsecondary · psirt@cisco.com USAusnutzbarkeit 1.8 · Auswirkung 3.6

v3.05.5mediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Nsecondary · Cisco PSIRT US

v3.15.5mediumAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.16.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

SSVC

Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.

Trackcoordinatorcisa_ssvcUS

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-59USprimärCWE-22USCWE-22US

betroffene Produkte (4)

Betroffene Produkte und Versionsbereiche.

Cisco Cisco NX-OS System Software in ACI Modealle Versionencisco_csafUS
Cisco Cisco NX-OS Software for Nexus 9000 Series Fabric Switches ACI Modeunspecified → 14.1(1i)enisa_euvdEU
Cisco Systems Inc. NX-OS≤ 14.0(3d)fstec_bduRU
cisco nx-os= 14.0(3d)nvdUScpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

cisco-sa-20190501-fabric-traversalCisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Symbolic Link Path Traversal Vulnerability2019-05-01csaf · cisco_csafUS
A vulnerability in the system shell for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode could allow an authenticated, local attacker to use symbolic links to overwrite system files. These system files may be sensitive and should not be overwritable by non-root users. The attacker would need valid device credentials. The vulnerability is due to incorrect symbolic link verification of directory paths when they are used in the system shell. An attacker could exploit this vulnerability by authenticating to the device and providing crafted user input to specific symbolic link CLI commands. Successful exploitation could allow the attacker to overwrite system files that should be restricted. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-fabric-traversal ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-fabric-traversal"]

auch bekannt als (4)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd fstec_bdu cisco_csaf nvd NVD CVE.org MITRE

veröffentlicht 2019-05-03geändert 2026-06-17

verwandt (2,372)

Verwandte Einträge.

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+2367 weitere

Referenzen (13)

Externe Belege — Patches, Meldungen, Analysen.

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