Vulnerability-Lookup

CNVD-2016-00233

Vulnerability from cnvd - Published: 2016-01-18

Title

RSA package for Python欺骗漏洞

Description

RSA package for Python是一个Python RSA实现，它支持加密和解密、签名和验证签名、密钥生成等。 Python-RSA的‘verify’函数存在安全漏洞，允许远程攻击者可利用特殊的签名填充使用较小的公共指数伪造签名。

Severity

中

Patch Name

RSA package for Python欺骗漏洞的补丁

Patch Description

RSA package for Python是一个Python RSA实现，它支持加密和解密、签名和验证签名、密钥生成等。 Python-RSA的‘verify’函数存在安全漏洞，允许远程攻击者可利用特殊的签名填充使用较小的公共指数伪造签名。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

用户可参考如下厂商提供的安全公告获取补丁以修复该漏洞： https://blog.filippo.io/bleichenbacher-06-signature-forgery-in-python-rsa/

Reference

https://blog.filippo.io/bleichenbacher-06-signature-forgery-in-python-rsa/

Impacted products

Name
Python Python <3.3

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2016-1494"
    }
  },
  "description": "RSA package for Python\u662f\u4e00\u4e2aPython RSA\u5b9e\u73b0\uff0c\u5b83\u652f\u6301\u52a0\u5bc6\u548c\u89e3\u5bc6\u3001\u7b7e\u540d\u548c\u9a8c\u8bc1\u7b7e\u540d\u3001\u5bc6\u94a5\u751f\u6210\u7b49\u3002\r\n\r\nPython-RSA\u7684\u2018verify\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u7279\u6b8a\u7684\u7b7e\u540d\u586b\u5145\u4f7f\u7528\u8f83\u5c0f\u7684\u516c\u5171\u6307\u6570\u4f2a\u9020\u7b7e\u540d\u3002",
  "discovererName": "Filippo Valsorda \u003cml@...ippo.io\u003e",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u516c\u544a\u83b7\u53d6\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttps://blog.filippo.io/bleichenbacher-06-signature-forgery-in-python-rsa/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-00233",
  "openTime": "2016-01-18",
  "patchDescription": "RSA package for Python\u662f\u4e00\u4e2aPython RSA\u5b9e\u73b0\uff0c\u5b83\u652f\u6301\u52a0\u5bc6\u548c\u89e3\u5bc6\u3001\u7b7e\u540d\u548c\u9a8c\u8bc1\u7b7e\u540d\u3001\u5bc6\u94a5\u751f\u6210\u7b49\u3002\r\n\r\nPython-RSA\u7684\u2018verify\u2019\u51fd\u6570\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u7279\u6b8a\u7684\u7b7e\u540d\u586b\u5145\u4f7f\u7528\u8f83\u5c0f\u7684\u516c\u5171\u6307\u6570\u4f2a\u9020\u7b7e\u540d\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": "RSA package for Python\u6b3a\u9a97\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Python Python \u003c3.3"
  },
  "referenceLink": "https://blog.filippo.io/bleichenbacher-06-signature-forgery-in-python-rsa/",
  "serverity": "\u4e2d",
  "submitTime": "2016-01-15",
  "title": "RSA package for Python\u6b3a\u9a97\u6f0f\u6d1e"
}

CVE-2016-1494 (GCVE-0-2016-1494)

Vulnerability from cvelistv5 – Published: 2016-01-13 15:00 – Updated: 2024-08-05 22:55

Summary

The verify function in the RSA package for Python (Python-RSA) before 3.3 allows attackers to spoof signatures with a small public exponent via crafted signature padding, aka a BERserk attack.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

8 references

URL	Tags
http://www.openwall.com/lists/oss-security/2016/01/05/3	mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/79829	vdb-entryx_refsource_BID
https://blog.filippo.io/bleichenbacher-06-signatu…	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2016/01/05/1	mailing-listx_refsource_MLIST
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-updates/2016-0…	vendor-advisoryx_refsource_SUSE
https://bitbucket.org/sybren/python-rsa/pull-requ…	x_refsource_CONFIRM
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA

Date Public

2016-01-04 00:00

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.