Vulnerability-Lookup

CVE-2017-10784 (GCVE-0-2017-10784)

Vulnerability from cvelistv5 – Published: 2017-09-19 17:00 – Updated: 2024-08-05 17:50

Summary

The Basic authentication code in WEBrick library in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows remote attackers to inject terminal emulator escape sequences into its log and possibly execute arbitrary commands via a crafted user name.

Severity

8.8 (High)


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

CWE

Assigner

mitre mitre root

References

15 references

URL	Tags
https://usn.ubuntu.com/3685-1/	vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2018:0585	vendor-advisoryx_refsource_REDHAT
https://usn.ubuntu.com/3528-1/	vendor-advisoryx_refsource_UBUNTU
http://www.securityfocus.com/bid/100853	vdb-entryx_refsource_BID
https://www.ruby-lang.org/en/news/2017/09/14/ruby…	x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2018:0378	vendor-advisoryx_refsource_REDHAT
http://www.securitytracker.com/id/1042004	vdb-entryx_refsource_SECTRACK
https://www.debian.org/security/2017/dsa-4031	vendor-advisoryx_refsource_DEBIAN
https://www.ruby-lang.org/en/news/2017/09/14/ruby…	x_refsource_CONFIRM
http://www.securitytracker.com/id/1039363	vdb-entryx_refsource_SECTRACK
https://access.redhat.com/errata/RHSA-2017:3485	vendor-advisoryx_refsource_REDHAT
https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
https://access.redhat.com/errata/RHSA-2018:0583	vendor-advisoryx_refsource_REDHAT
https://www.ruby-lang.org/en/news/2017/09/14/webr…	x_refsource_CONFIRM
https://security.gentoo.org/glsa/201710-18	vendor-advisoryx_refsource_GENTOO

Date Public

2017-09-14 00:00

Show details on NVD website

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        ],
        "sourceIdentifier": "cve@mitre.org",
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    },
    "redhat_vex": {
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      "current_release_date": "2026-06-28T06:07:04+00:00",
      "cve": "CVE-2017-10784",
      "id": "CVE-2017-10784",
      "initial_release_date": "2017-09-14T00:00:00+00:00",
      "product_status:fixed": "588",
      "product_status:known_affected": "13",
      "product_status:known_not_affected": "2",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "ruby: Escape sequence injection vulnerability in the Basic authentication of WEBrick",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2017/cve-2017-10784.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-04T01:01:35Z",
      "cve": "CVE-2017-10784",
      "id": "CVE-2017-10784",
      "initial_release_date": "2023-02-15T04:43:37Z",
      "product_status:known_affected": "2",
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      "product_status:recommended": "98",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2017-10784",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2017-10784.json",
      "version": "14"
    }
  }
}

RHSA-2026:7305

Vulnerability from csaf_redhat - Published: 2026-04-09 12:35 - Updated: 2026-09-08 11:18

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Severity

Moderate

Scope

36 vulnerabilities in this advisory, including CVE-2017-10784.

CVE-2017-10784

It was found that WEBrick did not sanitize all its log messages. If logs were printed in a terminal, an attacker could interact with the terminal via the use of escape sequences.

5.4 (Medium)


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

Fixed: 4 products

https://access.redhat.com/errata/RHSA-2026:7305

Open the full advisory

RHSA-2026:7307

Vulnerability from csaf_redhat - Published: 2026-04-09 12:37 - Updated: 2026-09-07 23:07

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Severity

Moderate

Scope

36 vulnerabilities in this advisory, including CVE-2017-10784.

CVE-2017-10784

It was found that WEBrick did not sanitize all its log messages. If logs were printed in a terminal, an attacker could interact with the terminal via the use of escape sequences.

5.4 (Medium)


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

Fixed: 4 products

https://access.redhat.com/errata/RHSA-2026:7307

Open the full advisory

RHSA-2026:8838

Vulnerability from csaf_redhat - Published: 2026-04-17 23:15 - Updated: 2026-09-08 05:00

Summary

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Severity

Moderate

Scope

36 vulnerabilities in this advisory, including CVE-2017-10784.

CVE-2017-10784

It was found that WEBrick did not sanitize all its log messages. If logs were printed in a terminal, an attacker could interact with the terminal via the use of escape sequences.

5.4 (Medium)


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

Fixed: 4 products

https://access.redhat.com/errata/RHSA-2026:8838

Open the full advisory

SUSE-SU-2020:1570-1

Vulnerability from csaf_suse - Published: 2020-06-09 09:16 - Updated: 2026-09-20 13:31

Summary

Security update for ruby2.1

Severity

Important

Scope

42 vulnerabilities in this advisory, including CVE-2017-10784.

CVE-2017-10784

5.4 (Medium)


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

Recommended: 168 products

Open the full advisory

UBUNTU-CVE-2017-10784 (CVE-2017-10784)

Vulnerability from osv_ubuntu – Published: 2017-09-19 00:00 – Updated: 2026-04-22 07:38 – Source website

Details

Severity

8.8 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2017-10784	REPORT
	https://www.ruby-lang.org/en/news/2017/09/14/webr…	REPORT
	https://hackerone.com/reports/223363	REPORT
	https://ubuntu.com/security/notices/USN-3439-1	ADVISORY
	https://ubuntu.com/security/notices/USN-3528-1	ADVISORY
	https://ubuntu.com/security/notices/USN-3685-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2017-10784	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libruby1.9.1",
            "binary_version": "1.9.3.484-2ubuntu1.5"
          },
          {
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            "binary_version": "1.9.3.484-2ubuntu1.5"
          },
          {
            "binary_name": "ri1.9.1",
            "binary_version": "1.9.3.484-2ubuntu1.5"
          },
          {
            "binary_name": "ruby1.9.1",
            "binary_version": "1.9.3.484-2ubuntu1.5"
          },
          {
            "binary_name": "ruby1.9.1-examples",
            "binary_version": "1.9.3.484-2ubuntu1.5"
          },
          {
            "binary_name": "ruby1.9.1-full",
            "binary_version": "1.9.3.484-2ubuntu1.5"
          },
          {
            "binary_name": "ruby1.9.3",
            "binary_version": "1.9.3.484-2ubuntu1.5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "ruby1.9.1",
        "purl": "pkg:deb/ubuntu/ruby1.9.1@1.9.3.484-2ubuntu1.5?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.9.3.484-2ubuntu1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.9.3.194-8.1ubuntu2",
        "1.9.3.448-1ubuntu1",
        "1.9.3.448-1ubuntu2",
        "1.9.3.484-1ubuntu1",
        "1.9.3.484-1ubuntu2",
        "1.9.3.484-2ubuntu1",
        "1.9.3.484-2ubuntu1.1",
        "1.9.3.484-2ubuntu1.2",
        "1.9.3.484-2ubuntu1.3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libruby2.0",
            "binary_version": "2.0.0.484-1ubuntu2.10"
          },
          {
            "binary_name": "ruby2.0",
            "binary_version": "2.0.0.484-1ubuntu2.10"
          },
          {
            "binary_name": "ruby2.0-tcltk",
            "binary_version": "2.0.0.484-1ubuntu2.10"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "ruby2.0",
        "purl": "pkg:deb/ubuntu/ruby2.0@2.0.0.484-1ubuntu2.10?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.0.484-1ubuntu2.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.0.299-2",
        "2.0.0.343-1",
        "2.0.0.343-1ubuntu1",
        "2.0.0.353-1",
        "2.0.0.353-1ubuntu1",
        "2.0.0.484-1ubuntu1",
        "2.0.0.484-1ubuntu2",
        "2.0.0.484-1ubuntu2.1",
        "2.0.0.484-1ubuntu2.2",
        "2.0.0.484-1ubuntu2.4",
        "2.0.0.484-1ubuntu2.5",
        "2.0.0.484-1ubuntu2.6",
        "2.0.0.484-1ubuntu2.8",
        "2.0.0.484-1ubuntu2.9"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libruby2.3",
            "binary_version": "2.3.1-2~16.04.5"
          },
          {
            "binary_name": "ruby2.3",
            "binary_version": "2.3.1-2~16.04.5"
          },
          {
            "binary_name": "ruby2.3-tcltk",
            "binary_version": "2.3.1-2~16.04.5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "ruby2.3",
        "purl": "pkg:deb/ubuntu/ruby2.3@2.3.1-2~16.04.5?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3.1-2~16.04.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.3.0-1",
        "2.3.0-2",
        "2.3.0-4ubuntu2",
        "2.3.0-4ubuntu3",
        "2.3.0-5ubuntu1",
        "2.3.1-2~16.04",
        "2.3.1-2~16.04.2",
        "2.3.1-2~16.04.4"
      ]
    }
  ],
  "aliases": [],
  "details": "The Basic authentication code in WEBrick library in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows remote attackers to inject terminal emulator escape sequences into its log and possibly execute arbitrary commands via a crafted user name.",
  "id": "UBUNTU-CVE-2017-10784",
  "modified": "2026-04-22T07:38:17Z",
  "published": "2017-09-19T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2017-10784"
    },
    {
      "type": "REPORT",
      "url": "https://www.ruby-lang.org/en/news/2017/09/14/webrick-basic-auth-escape-sequence-injection-cve-2017-10784/"
    },
    {
      "type": "REPORT",
      "url": "https://hackerone.com/reports/223363"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3439-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3528-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3685-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2017-10784"
    }
  ],
  "related": [
    "USN-3439-1",
    "USN-3528-1",
    "USN-3685-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2017-10784"
  ]
}

WID-SEC-W-2026-1423

Vulnerability from csaf_certbund - Published: 2017-09-14 22:00 - Updated: 2026-05-07 22:00

Summary

Ruby: Mehrere Schwachstellen

Severity

Hoch

Scope

3 vulnerabilities in this advisory, including CVE-2017-10784.

CVE-2017-10784

Known affected: 6 products Last affected: 3 products

Open the full advisory

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.

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.

Action not permitted

CVE-2017-10784 (GCVE-0-2017-10784)

RHSA-2026:7305

RHSA-2026:7307

RHSA-2026:8838

SUSE-SU-2020:1570-1

UBUNTU-CVE-2017-10784 (CVE-2017-10784)

WID-SEC-W-2026-1423

Tags

Sightings

Nomenclature

Related by attack behaviour