CVE-2023-43652
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
9.3 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
48.2%
JumpServer is an open source bastion host. As an unauthenticated user, it is possible to authenticate to the core API with a username and an SSH public key without needing a password or the corresponding SSH private key. An SSH public key should be considered public knowledge and should not used as an authentication secret alone. JumpServer provides an API for the KoKo component to validate user private key logins. This API does not verify the source of requests and will generate a personal authentication token. Given that public keys can be easily leaked, an attacker can exploit the leaked public key and username to authenticate, subsequently gaining access to the current user’s information and authorized actions. This issue has been addressed in versions 2.28.20 and 3.7.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Affected configurations
| Vendor | Product | Version | CPE |
|---|---|---|---|
| jumpserver | jumpserver | * | cpe:2.3:a:jumpserver:jumpserver:*:*:*:*:*:*:*:* |
| jumpserver | jumpserver | * | cpe:2.3:a:jumpserver:jumpserver:*:*:*:*:*:*:*:* |
CNA Affected
[
{
"vendor": "jumpserver",
"product": "jumpserver",
"versions": [
{
"version": ">= 2.0.0, < 2.28.20",
"status": "affected"
},
{
"version": ">= 3.0.0, < 3.7.1",
"status": "affected"
}
]
}
]Related
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
9.3 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
48.2%