VDB-131397 · CVE-2019-1595 · BID 107320

Cisco NX-OS FCoE Packet dynamically-managed code resources

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco NX-OS. It has been rated as problematic. This affects an unknown part of the component FCoE Handler. Performing a manipulation as part of Packet results in dynamically-managed code resources. This vulnerability is reported as CVE-2019-1595. The attacker must have access to the local network to execute the attack. No exploit exists.

Detailsinfo

A vulnerability was found in Cisco NX-OS (Router Operating System) (version unknown). It has been classified as problematic. This affects an unknown function of the component FCoE Handler. The manipulation as part of a Packet leads to a dynamically-managed code resources vulnerability. CWE is classifying the issue as CWE-913. The product does not properly restrict reading from or writing to dynamically-managed code resources such as variables, objects, classes, attributes, functions, or executable instructions or statements. This is going to have an impact on availability. The summary by CVE is:

A vulnerability in the Fibre Channel over Ethernet (FCoE) protocol implementation in Cisco NX-OS Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to an incorrect allocation of an internal interface index. An adjacent attacker with the ability to submit a crafted FCoE packet that crosses affected interfaces could trigger this vulnerability. A successful exploit could allow the attacker to cause a packet loop and high throughput on the affected interfaces, resulting in a DoS condition. This vulnerability has been fixed in version 7.3(5)N1(1).

The bug was discovered 03/06/2019. The weakness was disclosed 03/06/2019 as cisco-sa-20190306-nexus-fbr-do as confirmed advisory (Website). The advisory is shared at tools.cisco.com. This vulnerability is uniquely identified as CVE-2019-1595 since 12/06/2018. The attack needs to approached within the local network. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/29/2023).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entries VDB-131396, VDB-131395, VDB-131394 and VDB-131393 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 7.4
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Dynamically-managed code resources
CWE: CWE-913
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/06/2018 🔍
03/06/2019 +90 days 🔍
03/06/2019 +0 days 🔍
03/07/2019 +1 days 🔍
07/29/2023 +1605 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20190306-nexus-fbr-do
Status: Confirmed

CVE: CVE-2019-1595 (🔍)
GCVE (CVE): GCVE-0-2019-1595
GCVE (VulDB): GCVE-100-131397
SecurityFocus: 107320

See also: 🔍

Entryinfo

Created: 03/07/2019 07:04
Updated: 07/29/2023 09:06
Changes: 03/07/2019 07:04 (58), 05/14/2020 09:59 (1), 07/29/2023 09:03 (3), 07/29/2023 09:06 (12)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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