gsd-2021-32635
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Singularity is an open source container platform. In verions 3.7.2 and 3.7.3, Dde to incorrect use of a default URL, `singularity` action commands (`run`/`shell`/`exec`) specifying a container using a `library://` URI will always attempt to retrieve the container from the default remote endpoint (`cloud.sylabs.io`) rather than the configured remote endpoint. An attacker may be able to push a malicious container to the default remote endpoint with a URI that is identical to the URI used by a victim with a non-default remote endpoint, thus executing the malicious container. Only action commands (`run`/`shell`/`exec`) against `library://` URIs are affected. Other commands such as `pull` / `push` respect the configured remote endpoint. The vulnerability is patched in Singularity version 3.7.4. Two possible workarounds exist: Users can only interact with the default remote endpoint, or an installation can have an execution control list configured to restrict execution to containers signed with specific secure keys.
Aliases
Aliases
CVE-2021-32635


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-32635",
    "description": "Singularity is an open source container platform. In verions 3.7.2 and 3.7.3, Dde to incorrect use of a default URL, `singularity` action commands (`run`/`shell`/`exec`) specifying a container using a `library://` URI will always attempt to retrieve the container from the default remote endpoint (`cloud.sylabs.io`) rather than the configured remote endpoint. An attacker may be able to push a malicious container to the default remote endpoint with a URI that is identical to the URI used by a victim with a non-default remote endpoint, thus executing the malicious container. Only action commands (`run`/`shell`/`exec`) against `library://` URIs are affected. Other commands such as `pull` / `push` respect the configured remote endpoint. The vulnerability is patched in Singularity version 3.7.4. Two possible workarounds exist: Users can only interact with the default remote endpoint, or an installation can have an execution control list configured to restrict execution to containers signed with specific secure keys.",
    "id": "GSD-2021-32635",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-32635.html",
      "https://advisories.mageia.org/CVE-2021-32635.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-32635"
      ],
      "details": "Singularity is an open source container platform. In verions 3.7.2 and 3.7.3, Dde to incorrect use of a default URL, `singularity` action commands (`run`/`shell`/`exec`) specifying a container using a `library://` URI will always attempt to retrieve the container from the default remote endpoint (`cloud.sylabs.io`) rather than the configured remote endpoint. An attacker may be able to push a malicious container to the default remote endpoint with a URI that is identical to the URI used by a victim with a non-default remote endpoint, thus executing the malicious container. Only action commands (`run`/`shell`/`exec`) against `library://` URIs are affected. Other commands such as `pull` / `push` respect the configured remote endpoint. The vulnerability is patched in Singularity version 3.7.4. Two possible workarounds exist: Users can only interact with the default remote endpoint, or an installation can have an execution control list configured to restrict execution to containers signed with specific secure keys.",
      "id": "GSD-2021-32635",
      "modified": "2023-12-13T01:23:08.769418Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2021-32635",
        "STATE": "PUBLIC",
        "TITLE": "Action Commands (run/shell/exec) Against Library URIs Ignore Configured Remote Endpoint"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "singularity",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "\u003e= 3.7.2, \u003c= 3.7.3"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "sylabs"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Singularity is an open source container platform. In verions 3.7.2 and 3.7.3, Dde to incorrect use of a default URL, `singularity` action commands (`run`/`shell`/`exec`) specifying a container using a `library://` URI will always attempt to retrieve the container from the default remote endpoint (`cloud.sylabs.io`) rather than the configured remote endpoint. An attacker may be able to push a malicious container to the default remote endpoint with a URI that is identical to the URI used by a victim with a non-default remote endpoint, thus executing the malicious container. Only action commands (`run`/`shell`/`exec`) against `library://` URIs are affected. Other commands such as `pull` / `push` respect the configured remote endpoint. The vulnerability is patched in Singularity version 3.7.4. Two possible workarounds exist: Users can only interact with the default remote endpoint, or an installation can have an execution control list configured to restrict execution to containers signed with specific secure keys."
          }
        ]
      },
      "impact": {
        "cvss": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
          "version": "3.1"
        }
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-923: Improper Restriction of Communication Channel to Intended Endpoints"
              }
            ]
          },
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-20 Improper Input Validation"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/sylabs/singularity/security/advisories/GHSA-5mv9-q7fq-9394",
            "refsource": "CONFIRM",
            "url": "https://github.com/sylabs/singularity/security/advisories/GHSA-5mv9-q7fq-9394"
          },
          {
            "name": "https://github.com/sylabs/singularity/releases/tag/v3.7.4",
            "refsource": "MISC",
            "url": "https://github.com/sylabs/singularity/releases/tag/v3.7.4"
          },
          {
            "name": "GLSA-202107-50",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202107-50"
          }
        ]
      },
      "source": {
        "advisory": "GHSA-5mv9-q7fq-9394",
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003e=3.7.2 \u003c3.7.4",
          "affected_versions": "All versions starting from 3.7.2 before 3.7.4",
          "cvss_v2": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
          "cwe_ids": [
            "CWE-1035",
            "CWE-20",
            "CWE-78",
            "CWE-923",
            "CWE-937"
          ],
          "date": "2021-06-08",
          "description": "Singularity is an open source container platform. In verions 3.7.2 and 3.7.3, Dde to incorrect use of a default URL, `singularity` action commands (`run`/`shell`/`exec`) specifying a container using a `library://` URI will always attempt to retrieve the container from the default remote endpoint (`cloud.sylabs.io`) rather than the configured remote endpoint. An attacker may be able to push a malicious container to the default remote endpoint with a URI that is identical to the URI used by a victim with a non-default remote endpoint, thus executing the malicious container. Only action commands (`run`/`shell`/`exec`) against `library://` URIs are affected. Other commands such as `pull` / `push` respect the configured remote endpoint. The vulnerability is patched in Singularity version 3.7.4. Two possible workarounds exist: Users can only interact with the default remote endpoint, or an installation can have an execution control list configured to restrict execution to containers signed with specific secure keys.",
          "fixed_versions": [
            "3.7.4"
          ],
          "identifier": "CVE-2021-32635",
          "identifiers": [
            "GHSA-5mv9-q7fq-9394",
            "CVE-2021-32635"
          ],
          "not_impacted": "All versions before 3.7.2, all versions starting from 3.7.4",
          "package_slug": "go/github.com/sylabs/singularity",
          "pubdate": "2021-06-01",
          "solution": "Upgrade to version 3.7.4 or above.",
          "title": "Improper Restriction of Communication Channel to Intended Endpoints",
          "urls": [
            "https://github.com/hpcng/singularity/security/advisories/GHSA-jq42-hfch-42f3",
            "https://github.com/sylabs/singularity/security/advisories/GHSA-5mv9-q7fq-9394",
            "https://nvd.nist.gov/vuln/detail/CVE-2021-32635",
            "https://github.com/sylabs/singularity/releases/tag/v3.7.4",
            "https://github.com/advisories/GHSA-5mv9-q7fq-9394"
          ],
          "uuid": "fe47ff61-3585-4d1f-ad4a-6d6ae9ffff86"
        },
        {
          "affected_range": "\u003e=v3.7.2 \u003c=v3.7.3",
          "affected_versions": "All versions starting from 3.7.2 up to 3.7.3",
          "cvss_v2": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
          "cwe_ids": [
            "CWE-1035",
            "CWE-937"
          ],
          "date": "2022-04-22",
          "description": "An attacker may be able to push a malicious container to the default remote endpoint with a URI that is identical to the URI used by a victim with a non-default remote endpoint, thus executing the malicious container. Only action commands against `library://` URIs are affected. Other commands such as `pull` / `push` respect the configured remote endpoint.",
          "fixed_versions": [],
          "identifier": "CVE-2021-32635",
          "identifiers": [
            "CVE-2021-32635",
            "GHSA-5mv9-q7fq-9394"
          ],
          "not_impacted": "",
          "package_slug": "go/github.com/sylabs/singularity/internal/pkg/runtime/engines/singularity",
          "pubdate": "2021-05-28",
          "solution": "Unfortunately, there is no solution available yet.",
          "title": "Code Injection",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-32635"
          ],
          "uuid": "55c67677-0777-4313-ba10-c78fce484a95",
          "versions": [
            {
              "commit": {
                "sha": "f3fb589ab9ff1be785bac00307e443ddae94fc0f",
                "tags": [
                  "v3.7.2"
                ],
                "timestamp": "20210310143912"
              },
              "number": "v3.7.2"
            },
            {
              "commit": {
                "sha": "fb8b5f1d90b30ba0f5c42406ca80390f1f49e45f",
                "tags": [
                  "v3.7.3"
                ],
                "timestamp": "20210406213959"
              },
              "number": "v3.7.3"
            }
          ]
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:sylabs:singularity:3.7.2:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:sylabs:singularity:3.7.3:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2021-32635"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Singularity is an open source container platform. In verions 3.7.2 and 3.7.3, Dde to incorrect use of a default URL, `singularity` action commands (`run`/`shell`/`exec`) specifying a container using a `library://` URI will always attempt to retrieve the container from the default remote endpoint (`cloud.sylabs.io`) rather than the configured remote endpoint. An attacker may be able to push a malicious container to the default remote endpoint with a URI that is identical to the URI used by a victim with a non-default remote endpoint, thus executing the malicious container. Only action commands (`run`/`shell`/`exec`) against `library://` URIs are affected. Other commands such as `pull` / `push` respect the configured remote endpoint. The vulnerability is patched in Singularity version 3.7.4. Two possible workarounds exist: Users can only interact with the default remote endpoint, or an installation can have an execution control list configured to restrict execution to containers signed with specific secure keys."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "NVD-CWE-Other"
                },
                {
                  "lang": "en",
                  "value": "CWE-20"
                },
                {
                  "lang": "en",
                  "value": "CWE-923"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/sylabs/singularity/security/advisories/GHSA-5mv9-q7fq-9394",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://github.com/sylabs/singularity/security/advisories/GHSA-5mv9-q7fq-9394"
            },
            {
              "name": "https://github.com/sylabs/singularity/releases/tag/v3.7.4",
              "refsource": "MISC",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://github.com/sylabs/singularity/releases/tag/v3.7.4"
            },
            {
              "name": "GLSA-202107-50",
              "refsource": "GENTOO",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://security.gentoo.org/glsa/202107-50"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.4
        }
      },
      "lastModifiedDate": "2022-04-22T16:19Z",
      "publishedDate": "2021-05-28T21:15Z"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.