Cisco FXOS memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Cisco FXOS. Affected by this issue is some unknown functionality. Executing a manipulation can lead to memory corruption. The identification of this vulnerability is CVE-2020-3545. The attack can only be executed locally. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Cisco FXOS (the affected version unknown) and classified as critical. This vulnerability affects an unknown part. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A vulnerability in Cisco FXOS Software could allow an authenticated, local attacker with administrative credentials to cause a buffer overflow condition. The vulnerability is due to incorrect bounds checking of values that are parsed from a specific file. An attacker could exploit this vulnerability by supplying a crafted file that, when it is processed, may cause a stack-based buffer overflow. A successful exploit could allow the attacker to execute arbitrary code on the underlying operating system with root privileges. An attacker would need to have valid administrative credentials to exploit this vulnerability.

The weakness was shared 09/04/2020 as cisco-sa-fxos-buffer-cSdmfWUt as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2020-3545 since 12/12/2019. The attack needs to be approached locally. A single authentication is necessary for exploitation. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.0
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/12/2019 🔍
09/04/2020 +267 days 🔍
09/04/2020 +0 days 🔍
11/12/2020 +69 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-fxos-buffer-cSdmfWUt
Status: Confirmed

CVE: CVE-2020-3545 (🔍)
GCVE (CVE): GCVE-0-2020-3545
GCVE (VulDB): GCVE-100-160744

Entryinfo

Created: 09/04/2020 13:45
Updated: 11/12/2020 18:53
Changes: 09/04/2020 13:45 (38), 09/04/2020 13:50 (11), 11/12/2020 18:53 (1)
Complete: 🔍
Cache ID: 216::103

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