{"id":"CVE-2024-24553","state":"PUBLISHED","title":"Bludit uses SHA1 as Password Hashing Algorithm","description":"Bludit uses the SHA-1 hashing algorithm to compute password hashes. Thus, attackers could determine cleartext passwords with brute-force attacks due to the inherent speed of SHA-1. In addition, the salt that is computed by Bludit is generated with a non-cryptographically secure function.","publishedAt":"2024-06-24T07:10:03.585Z","updatedAt":"2024-08-01T23:19:52.892Z","severity":{"score":5.9,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N","source":"NCSC.ch"},"assigner":"NCSC.ch","products":["Bludit Bludit"],"affected":[{"vendor":"Bludit","product":"Bludit","packageName":"Bludit","defaultStatus":"unaffected","versions":[{"version":"2.0","status":"affected"}],"collectionURL":"https://www.bludit.com/","platforms":["Linux","Windows","MacOS"],"programFiles":["bl-kernel/login.class.php","bl-kernel/users.class.php"],"repo":"https://github.com/bludit/bludit/"}],"references":["https://www.redguard.ch/blog/2024/06/20/security-advisory-bludit/"],"weaknesses":["CWE-916"],"ingestedAt":"2026-10-29T20:07:10.607Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/24xxx/CVE-2024-24553.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-24553","state":"PUBLISHED","datePublished":"2024-06-24T07:10:03.585Z","dateUpdated":"2024-08-01T23:19:52.892Z","assignerShortName":"NCSC.ch","assignerOrgId":"455daabc-a392-441d-aa46-37d35189897c","dateReserved":"2024-01-25T14:02:00.526Z"},"containers":{"cna":{"title":"Bludit uses SHA1 as Password Hashing Algorithm","descriptions":[{"lang":"en","value":"Bludit uses the SHA-1 hashing algorithm to compute password hashes. Thus, attackers could determine cleartext passwords with brute-force attacks due to the inherent speed of SHA-1. In addition, the salt that is computed by Bludit is generated with a non-cryptographically secure function."}],"affected":[{"vendor":"Bludit","product":"Bludit","packageName":"Bludit","defaultStatus":"unaffected","versions":[{"version":"2.0","status":"affected"}],"collectionURL":"https://www.bludit.com/","platforms":["Linux","Windows","MacOS"],"programFiles":["bl-kernel/login.class.php","bl-kernel/users.class.php"],"repo":"https://github.com/bludit/bludit/"}],"references":[{"url":"https://www.redguard.ch/blog/2024/06/20/security-advisory-bludit/"}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"HIGH","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":5.9,"baseSeverity":"MEDIUM","privilegesRequired":"HIGH","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-916","description":"CWE-916 Use of Password Hash With Insufficient Computational Effort","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"NCSC.ch","orgId":"455daabc-a392-441d-aa46-37d35189897c","dateUpdated":"2024-06-24T07:10:03.585Z"},"credits":[{"lang":"en","type":"finder","value":"Andreas Pfefferle, Redguard AG"}],"datePublic":"2024-06-20T16:00:00.000Z","impacts":[{"capecId":"CAPEC-49","descriptions":[{"lang":"en","value":"CAPEC-49 Password Brute Forcing"}]},{"capecId":"CAPEC-16","descriptions":[{"lang":"en","value":"CAPEC-16 Dictionary-based Password Attack"}]},{"capecId":"CAPEC-20","descriptions":[{"lang":"en","value":"CAPEC-20 Encryption Brute Forcing"}]}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"To address this vulnerability, it is imperative that the Bludit development team transitions to a more secure and intentionally slow hashing algorithm, such as bcrypt or Argon2, for password storage. These algorithms introduce the necessary computational overhead to resist brute-force attacks effectively. In addition, it is advised that appropriate cost factors are used. <br><br>Furthermore, the generation of password salts should be revamped to employ a cryptographically secure method. The current approach, utilizing the `Text::randomText function`, should be replaced with a robust random number generator provided by the operating system or a dedicated cryptographic library. This change ensures the creation of unpredictable and secure salts, enhancing the overall resilience of the password storage mechanism."}],"value":"To address this vulnerability, it is imperative that the Bludit development team transitions to a more secure and intentionally slow hashing algorithm, such as bcrypt or Argon2, for password storage. These algorithms introduce the necessary computational overhead to resist brute-force attacks effectively. In addition, it is advised that appropriate cost factors are used. \n\nFurthermore, the generation of password salts should be revamped to employ a cryptographically secure method. The current approach, utilizing the `Text::randomText function`, should be replaced with a robust random number generator provided by the operating system or a dedicated cryptographic library. This change ensures the creation of unpredictable and secure salts, enhancing the overall resilience of the password storage mechanism."}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","affected":[{"vendor":"bludit","product":"bludit","defaultStatus":"unknown","versions":[{"version":"2.0","status":"affected","lessThanOrEqual":"3.15.0","versionType":"custom"}],"cpes":["cpe:2.3:a:bludit:bludit:2.0:-:*:*:*:*:*:*"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-06-24T14:07:21.341363Z","id":"CVE-2024-24553","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-06-24T14:07:23.855Z"}},{"title":"CVE Program Container","references":[{"url":"https://www.redguard.ch/blog/2024/06/20/security-advisory-bludit/","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-01T23:19:52.892Z"}}]}}}