Vulnerability-Lookup

CNVD-2021-53330

Vulnerability from cnvd - Published: 2021-07-22

Title

Redis远程代码执行漏洞

Description

Redis是一套开源的使用ANSI C编写、支持网络、可基于内存亦可持久化的日志型、键值（Key-Value）存储数据库，并提供多种语言的API。 Redis存在远程代码执行漏洞，攻击者可利用漏洞通过*BIT*命令与proto-max-bulk-len配置参数结合的情况下，可攻击运行在32位的系统中的32位的Redis程序，该漏洞能够造成整形溢出，并最终导致远程代码执行。

Severity

高

Patch Name

Redis远程代码执行漏洞的补丁

Patch Description

Formal description

厂商已提供漏洞修补方案，请关注厂商主页及时更新： https://redislabs.com/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-32761

Impacted products

Name
['Redis Labs Redis >=2.2，<5.0.13', 'Redis Labs Redis >=2.2，<6.0.15', 'Redis Labs Redis >2.2=，<6.2.5']

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JSON

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      "cveNumber": "CVE-2021-32761"
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  "number": "CNVD-2021-53330",
  "openTime": "2021-07-22",
  "patchDescription": "Redis\u662f\u4e00\u5957\u5f00\u6e90\u7684\u4f7f\u7528ANSI C\u7f16\u5199\u3001\u652f\u6301\u7f51\u7edc\u3001\u53ef\u57fa\u4e8e\u5185\u5b58\u4ea6\u53ef\u6301\u4e45\u5316\u7684\u65e5\u5fd7\u578b\u3001\u952e\u503c\uff08Key-Value\uff09\u5b58\u50a8\u6570\u636e\u5e93\uff0c\u5e76\u63d0\u4f9b\u591a\u79cd\u8bed\u8a00\u7684API\u3002\r\n\r\nRedis\u5b58\u5728\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u901a\u8fc7*BIT*\u547d\u4ee4\u4e0eproto-max-bulk-len\u914d\u7f6e\u53c2\u6570\u7ed3\u5408\u7684\u60c5\u51b5\u4e0b\uff0c\u53ef\u653b\u51fb\u8fd0\u884c\u572832\u4f4d\u7684\u7cfb\u7edf\u4e2d\u768432\u4f4d\u7684Redis\u7a0b\u5e8f\uff0c\u8be5\u6f0f\u6d1e\u80fd\u591f\u9020\u6210\u6574\u5f62\u6ea2\u51fa\uff0c\u5e76\u6700\u7ec8\u5bfc\u81f4\u8fdc\u7a0b\u4ee3\u7801\u6267\u884c\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",
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    ]
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}

CVE-2021-32761 (GCVE-0-2021-32761)

Vulnerability from cvelistv5 – Published: 2021-07-21 20:50 – Updated: 2024-08-03 23:33

Title

Integer overflow issues with *BIT commands on 32-bit systems

Summary

Redis is an in-memory database that persists on disk. A vulnerability involving out-of-bounds read and integer overflow to buffer overflow exists starting with version 2.2 and prior to versions 5.0.13, 6.0.15, and 6.2.5. On 32-bit systems, Redis `*BIT*` command are vulnerable to integer overflow that can potentially be exploited to corrupt the heap, leak arbitrary heap contents or trigger remote code execution. The vulnerability involves changing the default `proto-max-bulk-len` configuration parameter to a very large value and constructing specially crafted commands bit commands. This problem only affects Redis on 32-bit platforms, or compiled as a 32-bit binary. Redis versions 5.0.`3m 6.0.15, and 6.2.5 contain patches for this issue. An additional workaround to mitigate the problem without patching the `redis-server` executable is to prevent users from modifying the `proto-max-bulk-len` configuration parameter. This can be done using ACL to restrict unprivileged users from using the CONFIG SET command.

Severity

7.5 (High)


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

CWE

CWE-125 - Out-of-bounds Read
CWE-680 - Integer Overflow to Buffer Overflow

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7613 records in the last 180 days details

References

8 references

URL	Tags
https://github.com/redis/redis/security/advisorie…	x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://security.netapp.com/advisory/ntap-2021082…	x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
https://www.debian.org/security/2021/dsa-5001	vendor-advisoryx_refsource_DEBIAN
https://security.gentoo.org/glsa/202209-17	vendor-advisoryx_refsource_GENTOO

Impacted products

1 product

Vendor	Product	Version
redis	redis	Affected: >= 2.2, < 5.0.13 Affected: >= 6.0.0, < 6.0.15 Affected: >= 6.2.0, < 6.2.5

Show details on NVD website

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T23:33:55.821Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/redis/redis/security/advisories/GHSA-8wxq-j7rp-g8wj"
          },
          {
            "name": "[debian-lts-announce] 20210722 [SECURITY] [DLA 2717-1] redis security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/07/msg00017.html"
          },
          {
            "name": "FEDORA-2021-10d54c261f",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VGX7RRAWGXWXEAKJTQYSDSBO2BC3SAHD/"
          },
          {
            "name": "FEDORA-2021-76cf1653b3",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6O7AUOROBYGP5IMGJPC5HZ3R2RB6GZ5X/"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20210827-0004/"
          },
          {
            "name": "[debian-lts-announce] 20210827 [SECURITY] [DLA 2717-2] redis security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/08/msg00026.html"
          },
          {
            "name": "DSA-5001",
            "tags": [
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              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2021/dsa-5001"
          },
          {
            "name": "GLSA-202209-17",
            "tags": [
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              "x_refsource_GENTOO",
              "x_transferred"
            ],
            "url": "https://security.gentoo.org/glsa/202209-17"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "redis",
          "vendor": "redis",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 2.2, \u003c 5.0.13"
            },
            {
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              "version": "\u003e= 6.0.0, \u003c 6.0.15"
            },
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            }
          ]
        }
      ],
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        {
          "lang": "en",
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        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
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              "type": "CWE"
            }
          ]
        },
        {
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              "cweId": "CWE-680",
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              "lang": "en",
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-09-29T16:07:29.000Z",
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      },
      "references": [
        {
          "tags": [
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          ],
          "url": "https://github.com/redis/redis/security/advisories/GHSA-8wxq-j7rp-g8wj"
        },
        {
          "name": "[debian-lts-announce] 20210722 [SECURITY] [DLA 2717-1] redis security update",
          "tags": [
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            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2021/07/msg00017.html"
        },
        {
          "name": "FEDORA-2021-10d54c261f",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VGX7RRAWGXWXEAKJTQYSDSBO2BC3SAHD/"
        },
        {
          "name": "FEDORA-2021-76cf1653b3",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6O7AUOROBYGP5IMGJPC5HZ3R2RB6GZ5X/"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20210827-0004/"
        },
        {
          "name": "[debian-lts-announce] 20210827 [SECURITY] [DLA 2717-2] redis security update",
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        },
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          "tags": [
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          "url": "https://www.debian.org/security/2021/dsa-5001"
        },
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          "name": "GLSA-202209-17",
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          "url": "https://security.gentoo.org/glsa/202209-17"
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            },
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              "refsource": "MLIST",
              "url": "https://lists.debian.org/debian-lts-announce/2021/08/msg00026.html"
            },
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              "name": "DSA-5001",
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  "cveMetadata": {
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    "datePublished": "2021-07-21T20:50:09.000Z",
    "dateReserved": "2021-05-12T00:00:00.000Z",
    "dateUpdated": "2024-08-03T23:33:55.821Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

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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.

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