Vulnerability-Lookup

CNVD-2020-34326

Vulnerability from cnvd - Published: 2020-06-23

Title

多款Cisco产品缓冲区溢出漏洞（CNVD-2020-34326）

Description

Cisco Small Business RV016 Multi-WAN VPN等都是美国思科（Cisco）公司的一款VPN路由器。多款Cisco产品中的Web管理界面存在缓冲区溢出漏洞，该漏洞源于程序未能正确限制用户输入边界，远程攻击者可借助特制请求利用该漏洞导致设备崩溃或以root用户特权执行任意代码。

Severity

高

Patch Name

多款Cisco产品缓冲区溢出漏洞（CNVD-2020-34326）的补丁

Patch Description

Cisco Small Business RV016 Multi-WAN VPN等都是美国思科（Cisco）公司的一款VPN路由器。多款Cisco产品中的Web管理界面存在缓冲区溢出漏洞，该漏洞源于程序未能正确限制用户输入边界，远程攻击者可借助特制请求利用该漏洞导致设备崩溃或以root用户特权执行任意代码。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-rv-routers-stack-vUxHmnNz

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-3292

Impacted products

Name
['Cisco Cisco Small Business RV016 Multi-WAN VPN <=4.2.3.10', 'Cisco RV042 Dual WAN VPN <=4.2.3.10', 'Cisco RV042G Dual Gigabit WAN VPN <=4.2.3.10', 'Cisco RV082 Dual WAN VPN <=4.2.3.10', 'Cisco RV320 Dual Gigabit WAN VPN <= 1.5.1.05', 'Cisco RV325 Dual Gigabit WAN VPN <=1.5.1.05']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-3292"
    }
  },
  "description": "Cisco Small Business RV016 Multi-WAN VPN\u7b49\u90fd\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u6b3eVPN\u8def\u7531\u5668\u3002\n\n\u591a\u6b3eCisco\u4ea7\u54c1\u4e2d\u7684Web\u7ba1\u7406\u754c\u9762\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u9650\u5236\u7528\u6237\u8f93\u5165\u8fb9\u754c\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u8bbe\u5907\u5d29\u6e83\u6216\u4ee5root\u7528\u6237\u7279\u6743\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-routers-stack-vUxHmnNz",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-34326",
  "openTime": "2020-06-23",
  "patchDescription": "Cisco Small Business RV016 Multi-WAN VPN\u7b49\u90fd\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u6b3eVPN\u8def\u7531\u5668\u3002\r\n\r\n\u591a\u6b3eCisco\u4ea7\u54c1\u4e2d\u7684Web\u7ba1\u7406\u754c\u9762\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u9650\u5236\u7528\u6237\u8f93\u5165\u8fb9\u754c\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u8bbe\u5907\u5d29\u6e83\u6216\u4ee5root\u7528\u6237\u7279\u6743\u6267\u884c\u4efb\u610f\u4ee3\u7801\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": "\u591a\u6b3eCisco\u4ea7\u54c1\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2020-34326\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Cisco Cisco Small Business RV016 Multi-WAN VPN \u003c=4.2.3.10",
      "Cisco RV042 Dual WAN VPN \u003c=4.2.3.10",
      "Cisco RV042G Dual Gigabit WAN VPN \u003c=4.2.3.10",
      "Cisco RV082 Dual WAN VPN \u003c=4.2.3.10",
      "Cisco RV320 Dual Gigabit WAN VPN \u003c= 1.5.1.05",
      "Cisco RV325 Dual Gigabit WAN VPN \u003c=1.5.1.05"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-3292",
  "serverity": "\u9ad8",
  "submitTime": "2020-06-18",
  "title": "\u591a\u6b3eCisco\u4ea7\u54c1\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2020-34326\uff09"
}

CVE-2020-3292 (GCVE-0-2020-3292)

Vulnerability from cvelistv5 – Published: 2020-06-18 02:16 – Updated: 2024-11-15 17:08

Title

Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabilities

Summary

Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV320 and RV325 Series Routers and Cisco Small Business RV016, RV042, and RV082 Routers could allow an authenticated, remote attacker with administrative privileges to execute arbitrary code on an affected device. The vulnerabilities are due to insufficient boundary restrictions on user-supplied input to scripts in the web-based management interface. An attacker with administrative privileges that are sufficient to log in to the web-based management interface could exploit each vulnerability by sending crafted requests that contain overly large values to an affected device, causing a stack overflow. A successful exploit could allow the attacker to cause the device to crash or allow the attacker to execute arbitrary code with root privileges on the underlying operating system.

Severity

7.2 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-15 16:23 UTC

CWE

CWE-119

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 Small Business RV Series Router Firmware	Affected: n/a

Date Public

2020-06-17 00:00

Show details on NVD website

JSON

To clipboard

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            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-routers-stack-vUxHmnNz"
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        "title": "CVE Program Container"
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        "metrics": [
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      "metrics": [
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            "confidentialityImpact": "HIGH",
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            "CSCvt26663",
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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.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.