{"id":"CVE-2022-41956","state":"PUBLISHED","title":"Autolab is vulnerable to file disclosure via remote handin feature","description":"Autolab is a course management service, initially developed by a team of students at Carnegie Mellon University, that enables instructors to offer autograded programming assignments to their students over the Web. A file disclosure vulnerability was discovered in Autolab's remote handin feature, whereby users are able to hand-in assignments using paths outside their submission directory. Users can then view the submission to view the file's contents. The vulnerability has been patched in version 2.10.0. As a workaround, ensure that the field for the remote handin feature is empty (Edit Assessment > Advanced > Remote handin path), and that you are not running Autolab as `root` (or any user that has write access to `/`). Alternatively, disable the remote handin feature if it is unneeded by replacing the body of `local_submit` in `app/controllers/assessment/handin.rb` with `render(plain: \"Feature disabled\", status: :bad_request) && return`.","publishedAt":"2023-01-14T00:40:32.121Z","updatedAt":"2024-08-03T12:56:38.655Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["autolab Autolab"],"affected":[{"vendor":"autolab","product":"Autolab","versions":[{"version":"<= 2.9.0","status":"affected"}]}],"references":["https://github.com/autolab/Autolab/security/advisories/GHSA-g7x7-mgrv-f24x","https://securitylab.github.com/advisories/GHSL-2022-100_Autolab/","https://www.stackhawk.com/blog/rails-path-traversal-guide-examples-and-prevention/"],"weaknesses":["CWE-22"],"ingestedAt":"2026-10-29T19:50:37.819Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/41xxx/CVE-2022-41956.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-41956","state":"PUBLISHED","datePublished":"2023-01-14T00:40:32.121Z","dateUpdated":"2024-08-03T12:56:38.655Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2022-09-30T16:38:28.945Z"},"containers":{"cna":{"title":"Autolab is vulnerable to file disclosure via remote handin feature","descriptions":[{"lang":"en","value":"Autolab is a course management service, initially developed by a team of students at Carnegie Mellon University, that enables instructors to offer autograded programming assignments to their students over the Web. A file disclosure vulnerability was discovered in Autolab's remote handin feature, whereby users are able to hand-in assignments using paths outside their submission directory. Users can then view the submission to view the file's contents. The vulnerability has been patched in version 2.10.0. As a workaround, ensure that the field for the remote handin feature is empty (Edit Assessment > Advanced > Remote handin path), and that you are not running Autolab as `root` (or any user that has write access to `/`). Alternatively, disable the remote handin feature if it is unneeded by replacing the body of `local_submit` in `app/controllers/assessment/handin.rb` with `render(plain: \"Feature disabled\", status: :bad_request) && return`."}],"affected":[{"vendor":"autolab","product":"Autolab","versions":[{"version":"<= 2.9.0","status":"affected"}]}],"references":[{"url":"https://github.com/autolab/Autolab/security/advisories/GHSA-g7x7-mgrv-f24x","name":"https://github.com/autolab/Autolab/security/advisories/GHSA-g7x7-mgrv-f24x","tags":["x_refsource_CONFIRM"]},{"url":"https://securitylab.github.com/advisories/GHSL-2022-100_Autolab/","name":"https://securitylab.github.com/advisories/GHSL-2022-100_Autolab/","tags":["x_refsource_MISC"]},{"url":"https://www.stackhawk.com/blog/rails-path-traversal-guide-examples-and-prevention/","name":"https://www.stackhawk.com/blog/rails-path-traversal-guide-examples-and-prevention/","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-22","lang":"en","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2023-12-11T18:24:15.495Z"},"source":{"advisory":"GHSA-g7x7-mgrv-f24x","discovery":"UNKNOWN"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://github.com/autolab/Autolab/security/advisories/GHSA-g7x7-mgrv-f24x","name":"https://github.com/autolab/Autolab/security/advisories/GHSA-g7x7-mgrv-f24x","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://securitylab.github.com/advisories/GHSL-2022-100_Autolab/","name":"https://securitylab.github.com/advisories/GHSL-2022-100_Autolab/","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://www.stackhawk.com/blog/rails-path-traversal-guide-examples-and-prevention/","name":"https://www.stackhawk.com/blog/rails-path-traversal-guide-examples-and-prevention/","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T12:56:38.655Z"}}]}}}