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Add CVE-2022-29245 for GHSA-72p8-v4hg-v45p

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Add CVE-2022-29245 for GHSA-72p8-v4hg-v45p
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advisory-database[bot] 2022-05-31 16:33:25 +00:00 committed by GitHub
parent 2d86ec250d
commit 9647185fd2
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2022/29xxx/CVE-2022-29245.json
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{
"data_type": "CVE",
"data_format": "MITRE",
"data_version": "4.0",
"CVE_data_meta": {
"ASSIGNER": "security-advisories@github.com",
"ID": "CVE-2022-29245",
"ASSIGNER": "cve@mitre.org",
"STATE": "RESERVED"
"STATE": "PUBLIC",
"TITLE": "Weak private key generation in SSH.NET"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "SSH.NET",
"version": {
"version_data": [
{
"version_value": ">= 2020.0.0, < 2020.0.2"
}
]
}
}
]
},
"vendor_name": "sshnet"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
"value": "SSH.NET is a Secure Shell (SSH) library for .NET. In versions 2020.0.0 and 2020.0.1, during an `X25519` key exchange, the client’s private key is generated with `System.Random`. `System.Random` is not a cryptographically secure random number generator, it must therefore not be used for cryptographic purposes. When establishing an SSH connection to a remote host, during the X25519 key exchange, the private key is generated with a weak random number generator whose seed can be brute forced. This allows an attacker who is able to eavesdrop on the communications to decrypt them. Version 2020.0.2 contains a patch for this issue. As a workaround, one may disable support for `curve25519-sha256` and `curve25519-sha256@libssh.org` key exchange algorithms."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-338: Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/sshnet/SSH.NET/security/advisories/GHSA-72p8-v4hg-v45p",
"refsource": "CONFIRM",
"url": "https://github.com/sshnet/SSH.NET/security/advisories/GHSA-72p8-v4hg-v45p"
},
{
"name": "https://github.com/sshnet/SSH.NET/commit/03c6d60736b8f7b42e44d6989a53f9b644a091fb",
"refsource": "MISC",
"url": "https://github.com/sshnet/SSH.NET/commit/03c6d60736b8f7b42e44d6989a53f9b644a091fb"
},
{
"name": "https://github.com/sshnet/SSH.NET/blob/bc99ada7da3f05f50d9379f2644941d91d5bf05a/src/Renci.SshNet/Security/KeyExchangeECCurve25519.cs#L51",
"refsource": "MISC",
"url": "https://github.com/sshnet/SSH.NET/blob/bc99ada7da3f05f50d9379f2644941d91d5bf05a/src/Renci.SshNet/Security/KeyExchangeECCurve25519.cs#L51"
},
{
"name": "https://github.com/sshnet/SSH.NET/releases/tag/2020.0.2",
"refsource": "MISC",
"url": "https://github.com/sshnet/SSH.NET/releases/tag/2020.0.2"
}
]
},
"source": {
"advisory": "GHSA-72p8-v4hg-v45p",
"discovery": "UNKNOWN"
}
}