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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      "cveNumber": "CVE-2021-32761"
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  "number": "CNVD-2021-53330",
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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 mitre root

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

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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",
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            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/07/msg00017.html"
          },
          {
            "name": "FEDORA-2021-10d54c261f",
            "tags": [
              "vendor-advisory",
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          },
          {
            "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"
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            "url": "https://security.netapp.com/advisory/ntap-20210827-0004/"
          },
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            "name": "[debian-lts-announce] 20210827 [SECURITY] [DLA 2717-2] redis security update",
            "tags": [
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            ],
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          }
        ],
        "title": "CVE Program Container"
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    ],
    "cna": {
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          "vendor": "redis",
          "versions": [
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VGX7RRAWGXWXEAKJTQYSDSBO2BC3SAHD/"
        },
        {
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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.

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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CNVD-2021-53330

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

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Related by attack behaviour