Vulnerability-Lookup

CNVD-2020-14351

Vulnerability from cnvd - Published: 2020-02-28

Title

OpenSMTPD's存在命令执行漏洞

Description

OpenSMTPD是一个免费的服务器端SMTP协议的实现,并提供了一些额外的标准扩展。 OpenSMTPD's存在命令执行漏洞。攻击者可漏洞执行易受攻击的OpenSMTPD安装上任意shell命令。

Severity

高

Patch Name

OpenSMTPD's存在命令执行漏洞的补丁

Patch Description

OpenSMTPD是一个免费的服务器端SMTP协议的实现,并提供了一些额外的标准扩展。 OpenSMTPD's存在命令执行漏洞。攻击者可漏洞执行易受攻击的OpenSMTPD安装上任意shell命令。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

目前厂商已发布升级补丁以修复漏洞，详情请关注厂商主页：

https://www.opensmtpd.org/

Reference

https://seclists.org/bugtraq/2020/Feb/37

Impacted products

Name
OpenSMTPD OpenSMTPD

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-8794"
    }
  },
  "description": "OpenSMTPD\u662f\u4e00\u4e2a\u514d\u8d39\u7684\u670d\u52a1\u5668\u7aefSMTP\u534f\u8bae\u7684\u5b9e\u73b0,\u5e76\u63d0\u4f9b\u4e86\u4e00\u4e9b\u989d\u5916\u7684\u6807\u51c6\u6269\u5c55\u3002\n\nOpenSMTPD\u0027s\u5b58\u5728\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u6f0f\u6d1e\u6267\u884c\u6613\u53d7\u653b\u51fb\u7684OpenSMTPD\u5b89\u88c5\u4e0a\u4efb\u610fshell\u547d\u4ee4\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\n\r\nhttps://www.opensmtpd.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-14351",
  "openTime": "2020-02-28",
  "patchDescription": "OpenSMTPD\u662f\u4e00\u4e2a\u514d\u8d39\u7684\u670d\u52a1\u5668\u7aefSMTP\u534f\u8bae\u7684\u5b9e\u73b0,\u5e76\u63d0\u4f9b\u4e86\u4e00\u4e9b\u989d\u5916\u7684\u6807\u51c6\u6269\u5c55\u3002\r\n\r\nOpenSMTPD\u0027s\u5b58\u5728\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u6f0f\u6d1e\u6267\u884c\u6613\u53d7\u653b\u51fb\u7684OpenSMTPD\u5b89\u88c5\u4e0a\u4efb\u610fshell\u547d\u4ee4\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": "OpenSMTPD\u0027s\u5b58\u5728\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "OpenSMTPD OpenSMTPD"
  },
  "referenceLink": "https://seclists.org/bugtraq/2020/Feb/37",
  "serverity": "\u9ad8",
  "submitTime": "2020-02-27",
  "title": "OpenSMTPD\u0027s\u5b58\u5728\u547d\u4ee4\u6267\u884c\u6f0f\u6d1e"
}

CVE-2020-8794 (GCVE-0-2020-8794)

Vulnerability from cvelistv5 – Published: 2020-02-25 16:38 – Updated: 2024-08-04 10:12

Summary

OpenSMTPD before 6.6.4 allows remote code execution because of an out-of-bounds read in mta_io in mta_session.c for multi-line replies. Although this vulnerability affects the client side of OpenSMTPD, it is possible to attack a server because the server code launches the client code during bounce handling.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

11 references

URL	Tags
https://www.openbsd.org/security.html	x_refsource_MISC
https://www.openwall.com/lists/oss-security/2020/…	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2020/02/26/1	mailing-listx_refsource_MLIST
https://www.debian.org/security/2020/dsa-4634	vendor-advisoryx_refsource_DEBIAN
http://seclists.org/fulldisclosure/2020/Feb/32	mailing-listx_refsource_FULLDISC
http://www.openwall.com/lists/oss-security/2020/03/01/1	mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2020/03/01/2	mailing-listx_refsource_MLIST
http://packetstormsecurity.com/files/156633/OpenS…	x_refsource_MISC
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://usn.ubuntu.com/4294-1/	vendor-advisoryx_refsource_UBUNTU
http://www.openwall.com/lists/oss-security/2021/05/04/7	mailing-listx_refsource_MLIST

Show details on NVD website

JSON

To clipboard

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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.