The verify endpoint in YubiKey Validation Server before 2.40 does not check the length of SQL queries, which allows remote attackers to cause a denial of service, aka SQL injection. NOTE: this issue is potentially relevant to persons outside Yubico who operate a self-hosted OTP validation service; the issue does NOT affect YubiCloud.
{
"cpe": "cpe:2.3:a:yubico:yubikey_one_time_password_validation_server:*:*:*:*:*:*:*:*",
"source": [
"CPE_FIELD",
"REFERENCES"
],
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "2.40"
}
]
}