GHSA-q9x4-q76f-5h5j CVE-2019-19030 GO-2022-0704
Unauthenticated users can exploit an enumeration vulnerability in Harbor (CVE-2019-19030)
- Severity
- 5.3 / 10
- Medium · CVSS 3.1
- Exploit chance (EPSS)
- 1.98%
- Chance of exploitation in the next 30 days. Higher than 80.59% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-204 Observable Response Discrepancy
- Fix
1.10.3- Upgrade github.com/goharbor/harbor to this version or later
Description
Impact
Sean Wright from Secureworks has discovered an enumeration vulnerability. An attacker can make use of the Harbor API to make unauthenticated calls to the Harbor instance. Based on the HTTP status code in the response, an attacker is then able to work out which resources exist, and which do not. This would likely be accomplished by either providing a wordlist or enumerating through a sequence an unauthenticated attacker is able to enumerate resources on the system. This provides them with information such as existing projects, repositories, etc.
The vulnerability was immediately fixed by the Harbor team.
Issue
The following API resources where found to be vulnerable to enumeration attacks: /api/chartrepo/{repo}/prov (POST) /api/chartrepo/{repo}/charts (GET, POST) /api/chartrepo/{repo}/charts/{name} (GET, DELETE) /api/chartrepo/{repo}/charts/{name}/{version} (GET, DELETE) /api/labels?name={name}&scope=p (GET) /api/repositories?project_id={id} (GET) /api/repositories/{repo_name}/ (GET, PUT, DELETE) /api/repositories/{repo_name}/tags (GET) /api/repositories/{repo_name}/tags/{tag}/manifest?version={version} (GET) /api/repositories/{repo_name/{tag}/labels (GET) /api/projects?project_name={name} (HEAD) /api/projects/{project_id}/summary (GET) /api/projects/{project_id}/logs (GET) /api/projects/{project_id} (GET, PUT, DELETE) /api/projects/{project_id}/metadatas (GET, POST) /api/projects/{project_id}/metadatas/{metadata_name} (GET, PUT)
Known Attack Vectors
Successful exploitation of this issue will lead to bad actors identifying which resources exist in Harbor without requiring authentication for the Harbor API.
Patches
If your product uses the affected releases of Harbor, update to version 1.10.3 or 2.0.1 to patch this issue immediately.
https://github.com/goharbor/harbor/releases/tag/v1.10.3 https://github.com/goharbor/harbor/releases/tag/v2.0.1
Workarounds
There is no known workaround
For more information
If you have any questions or comments about this advisory, contact cncf-harbor-security@lists.cncf.io View our security policy at https://github.com/goharbor/harbor/security/policy
Affected versions
Go
| Package | Vulnerable | Fixed in |
|---|---|---|
| github.com/goharbor/harbor | >= 1.7.0, < 1.10.3 |
1.10.3 |
| github.com/goharbor/harbor | >= 2.0.0, < 2.0.1 |
2.0.1 |
| github.com/goharbor/harbor | >= 1.7.0, < 1.10.3>= 2.0.0+incompatible, < 2.0.1+incompatible |
1.10.32.0.1+incompatible |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
github.com/goharbor/harbor Go → 1.10.3
- go
go get github.com/goharbor/harbor@v1.10.3 && go mod tidy
Severity breakdown
CVSS 3.1 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Weakness
CWE-204: Observable Response Discrepancy
The product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere.
How to prevent it
- Architecture and Design: Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
- Implementation: Ensure that error messages only contain minimal details that are useful to the intended audience and no one else. The messages need to strike the balance between being too cryptic (which can confuse users) or being too detailed (which may reveal more than intended). The messages should not reveal the methods that were used to determine the error. Attackers can use detailed information to refine or optimize their original attack, thereby increasing their chances of success. If errors must be captured in some detail, record them in log messages, but consider what could occur if the log messages can be viewed by attackers. Highly sensitive information such as passwords should never be saved to log files. Avoid inconsistent messaging that might accidentally tip off an attacker about internal state, such as whether a user account exists or not.
References
Advisories
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-prh4-vhfh-24mj Harbor: LDAP password and OIDC secret are not redacted in the audit log | Medium | Also affects github.com/goharbor/harbor |
| GHSA-hj7x-hmf2-hc2p Harbor allows the use of the default password for web UI login | Critical | Also affects github.com/goharbor/harbor |
| GHSA-h27m-3qw8-3pw8 Possible ORM Leak Vulnerability in the Harbor | Medium | Also affects github.com/goharbor/harbor |
| GHSA-f9vc-vf3r-pqqq Harbor repository description page has Cross-site Scripting vulnerability | Medium | Also affects github.com/goharbor/harbor |
| GHSA-r864-28pw-8682 Harbor fails to validate the user permissions when updating p2p preheat policies | High | Also affects github.com/goharbor/harbor |
| GHSA-hw28-333w-qxp3 Harbor fails to validate the user permissions when updating project configurations | Medium | Also affects github.com/goharbor/harbor |
| GHSA-vw63-824v-qf2j SQL Injection in Harbor scan log API | Medium | Also affects github.com/goharbor/harbor |
| GHSA-5757-v49g-f6r7 Open Redirect URL in Harbor | Medium | Also affects github.com/goharbor/harbor |
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