High
Security advisory
An issue was discovered in sysPass 2.x before 2.1, in which an algorithm was never sufficiently reviewed by cryptographers. The fact that inc/SP/Core/Crypt.class is using the MCRYPT_RIJNDAEL_256() function (the 256-bit block version of Rijndael, not AES) instead of MCRYPT_RIJNDAEL_128 (real AES) could help an attacker to create unknown havoc in the remote system.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2017-5999
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 09:52 UTC · Revision 1
Source evidence
An issue was discovered in sysPass 2.x before 2.1, in which an algorithm was never sufficiently reviewed by cryptographers. The fact that inc/SP/Core/Crypt.class is using the MCRYPT_RIJNDAEL_256() function (the 256-bit block version of Rijndael, not AES) instead of MCRYPT_RIJNDAEL_128 (real AES) could help an attacker to create unknown havoc in the remote system.
osv:CVE-2017-5999
Complete source record
{
"id": "326fb977300abbb6354ca4d8181fa8d8613d6a0fc510ff604534855f4f9dc31f",
"url": "https://osv.dev/vulnerability/CVE-2017-5999",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2017-5999",
"summary": "An issue was discovered in sysPass 2.x before 2.1, in which an algorithm was never sufficiently reviewed by cryptographers. The fact that inc/SP/Core/Crypt.class is using the MCRYPT_RIJNDAEL_256() function (the 256-bit block version of Rijndael, not AES) instead of MCRYPT_RIJNDAEL_128 (real AES) could help an attacker to create unknown havoc in the remote system.",
"evidence": "osv:CVE-2017-5999",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2017-5999",
"aliases": [
"CVE-2017-5999"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/nuxsmin/syspass",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "a0e2c485e53b370a7cc6d833e192c3c5bfd70e1f"
},
{
"fixed": "81cc9e38db2a5f47efc46575db88ccd6dbf29204"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"fixed": "a0e2c485e53b370a7cc6d833e192c3c5bfd70e1f"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "81cc9e38db2a5f47efc46575db88ccd6dbf29204"
}
],
"source": "REFERENCES_TAG",
"original_tag": "2.1.0.17022601"
}
]
}
}
],
"versions": [
"2.0.0.17021601",
"2.0.0.17021302",
"2.0.0.17021301",
"1.2.0.21",
"1.2.0.20",
"1.2.0.19",
"1.2.0.18",
"1.2.0.17",
"1.2.0.16",
"1.2.0.14",
"1.2.0.13",
"1.2.0.12",
"1.2.0.11",
"1.2.0.10",
"1.2.0.09",
"1.2.0.08",
"1.2.0.07",
"1.2.0.06",
"1.2.0.05-rc5",
"1.2.0.04-rc4",
"1.2.0.03-rc3",
"1.2.0.02-rc2",
"1.1.2.24",
"1.1.2.23",
"1.1.2.22",
"1.1.2.21",
"1.1.2.20",
"1.1.2.19",
"1.1.2.18",
"1.0.9",
"1.0.8",
"1.0.7",
"1.0.6",
"1.0.5",
"1.0.4",
"1.0.3",
"1.0.2"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-5999.json"
}
}
],
"modified": "2026-10-20T10:48:14.959694197Z",
"provider": "osv",
"references": [
"https://cxsecurity.com/issue/WLB-2017020196",
"https://github.com/nuxsmin/sysPass/commit/a0e2c485e53b370a7cc6d833e192c3c5bfd70e1f",
"https://github.com/nuxsmin/sysPass/releases/tag/2.1.0.17022601"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:a:syspass:syspass:2.0:*:*:*:*:*:*:*"
],
"vendor_product": "syspass:syspass",
"extracted_events": [
{
"range": [
{
"introduced": "2.0"
},
{
"last_affected": "2.0"
}
],
"source": "CPE_STRING"
}
]
},
{
"extracted_events": [
{
"range": [
{
"introduced": "2.x"
},
{
"fixed": "2.1"
}
],
"source": "DESCRIPTION"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2017-5999",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 380187,
"published_at": "2017-03-06T06:59:00.287+00:00"
}