Vulnerability-Lookup

CNVD-2021-68726

Vulnerability from cnvd - Published: 2021-09-07

Title

Cisco UCS Manager拒绝服务漏洞（CNVD-2021-68726）

Description

Cisco UCS Manager是美国思科（Cisco）公司的一款管理sketchup坐标系的电脑插件。 Cisco UCS Manager处理SSH会话的方式存在拒绝服务漏洞，攻击者可通过打开大量SSH会话利用该漏洞导致内部Cisco UCS Manager软件进程的崩溃和重新启动。

Severity

中

Patch Name

Cisco UCS Manager拒绝服务漏洞（CNVD-2021-68726）的补丁

Patch Description

Cisco UCS Manager是美国思科（Cisco）公司的一款管理sketchup坐标系的电脑插件。 Cisco UCS Manager处理SSH会话的方式存在拒绝服务漏洞，攻击者可通过打开大量SSH会话利用该漏洞导致内部Cisco UCS Manager软件进程的崩溃和重新启动。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucs-ssh-dos-MgvmyrQy

Reference

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucs-ssh-dos-MgvmyrQy

Impacted products

Name
Cisco Cisco UCS Manager

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-1592",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-1592"
    }
  },
  "description": "Cisco UCS Manager\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u7ba1\u7406sketchup\u5750\u6807\u7cfb\u7684\u7535\u8111\u63d2\u4ef6\u3002\n\nCisco UCS Manager\u5904\u7406SSH\u4f1a\u8bdd\u7684\u65b9\u5f0f\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u6253\u5f00\u5927\u91cfSSH\u4f1a\u8bdd\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5185\u90e8Cisco UCS Manager\u8f6f\u4ef6\u8fdb\u7a0b\u7684\u5d29\u6e83\u548c\u91cd\u65b0\u542f\u52a8\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-68726",
  "openTime": "2021-09-07",
  "patchDescription": "Cisco UCS Manager\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u7ba1\u7406sketchup\u5750\u6807\u7cfb\u7684\u7535\u8111\u63d2\u4ef6\u3002\r\n\r\nCisco UCS Manager\u5904\u7406SSH\u4f1a\u8bdd\u7684\u65b9\u5f0f\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u6253\u5f00\u5927\u91cfSSH\u4f1a\u8bdd\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u5185\u90e8Cisco UCS Manager\u8f6f\u4ef6\u8fdb\u7a0b\u7684\u5d29\u6e83\u548c\u91cd\u65b0\u542f\u52a8\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Cisco UCS Manager\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-68726\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco Cisco UCS Manager"
  },
  "referenceLink": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucs-ssh-dos-MgvmyrQy",
  "serverity": "\u4e2d",
  "submitTime": "2021-08-26",
  "title": "Cisco UCS Manager\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-68726\uff09"
}

CVE-2021-1592 (GCVE-0-2021-1592)

Vulnerability from cvelistv5 – Published: 2021-08-25 19:11 – Updated: 2024-11-07 22:01

Title

Cisco UCS Manager Software SSH Sessions Denial of Service Vulnerability

Summary

A vulnerability in the way Cisco UCS Manager software handles SSH sessions could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper resource management for established SSH sessions. An attacker could exploit this vulnerability by opening a significant number of SSH sessions on an affected device. A successful exploit could allow the attacker to cause a crash and restart of internal Cisco UCS Manager software processes and a temporary loss of access to the Cisco UCS Manager CLI and web UI. Note: The attacker must have valid user credentials to authenticate to the affected device.

Severity

4.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-07 21:40 UTC

CWE

CWE-664

Assigner

cisco mitre root

References

1 reference

URL	Tags
https://tools.cisco.com/security/center/content/C…	vendor-advisoryx_refsource_CISCO

Impacted products

1 product

Vendor	Product	Version
Cisco	Cisco Unified Computing System (Managed)	Affected: n/a

Date Public

2021-08-25 00:00

Show details on NVD website

JSON

To clipboard

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          }
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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CNVD-2021-68726

CVE-2021-1592 (GCVE-0-2021-1592)

Tags

Sightings

Nomenclature

Related by attack behaviour