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Vulnerability Details :

CVE-2021-29441

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-27 Apr, 2021 | 20:20
Updated At-03 Aug, 2024 | 22:02
Rejected At-
Credits

Authentication bypass

Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos before version 1.4.1, when configured to use authentication (-Dnacos.core.auth.enabled=true) Nacos uses the AuthFilter servlet filter to enforce authentication. This filter has a backdoor that enables Nacos servers to bypass this filter and therefore skip authentication checks. This mechanism relies on the user-agent HTTP header so it can be easily spoofed. This issue may allow any user to carry out any administrative tasks on the Nacos server.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:GitHub_M
Assigner Org ID:a0819718-46f1-4df5-94e2-005712e83aaa
Published At:27 Apr, 2021 | 20:20
Updated At:03 Aug, 2024 | 22:02
Rejected At:
▼CVE Numbering Authority (CNA)
Authentication bypass

Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos before version 1.4.1, when configured to use authentication (-Dnacos.core.auth.enabled=true) Nacos uses the AuthFilter servlet filter to enforce authentication. This filter has a backdoor that enables Nacos servers to bypass this filter and therefore skip authentication checks. This mechanism relies on the user-agent HTTP header so it can be easily spoofed. This issue may allow any user to carry out any administrative tasks on the Nacos server.

Affected Products
Vendor
alibaba
Product
nacos
Versions
Affected
  • < 1.4.1
Problem Types
TypeCWE IDDescription
CWECWE-290CWE-290 Authentication Bypass by Spoofing
Type: CWE
CWE ID: CWE-290
Description: CWE-290 Authentication Bypass by Spoofing
Metrics
VersionBase scoreBase severityVector
3.18.6HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Version: 3.1
Base score: 8.6
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/alibaba/nacos/issues/4701
x_refsource_MISC
https://github.com/advisories/GHSA-36hp-jr8h-556f
x_refsource_CONFIRM
https://github.com/alibaba/nacos/pull/4703
x_refsource_MISC
Hyperlink: https://github.com/alibaba/nacos/issues/4701
Resource:
x_refsource_MISC
Hyperlink: https://github.com/advisories/GHSA-36hp-jr8h-556f
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/alibaba/nacos/pull/4703
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/alibaba/nacos/issues/4701
x_refsource_MISC
x_transferred
https://github.com/advisories/GHSA-36hp-jr8h-556f
x_refsource_CONFIRM
x_transferred
https://github.com/alibaba/nacos/pull/4703
x_refsource_MISC
x_transferred
Hyperlink: https://github.com/alibaba/nacos/issues/4701
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://github.com/advisories/GHSA-36hp-jr8h-556f
Resource:
x_refsource_CONFIRM
x_transferred
Hyperlink: https://github.com/alibaba/nacos/pull/4703
Resource:
x_refsource_MISC
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security-advisories@github.com
Published At:27 Apr, 2021 | 21:15
Updated At:07 May, 2021 | 23:09

Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos before version 1.4.1, when configured to use authentication (-Dnacos.core.auth.enabled=true) Nacos uses the AuthFilter servlet filter to enforce authentication. This filter has a backdoor that enables Nacos servers to bypass this filter and therefore skip authentication checks. This mechanism relies on the user-agent HTTP header so it can be easily spoofed. This issue may allow any user to carry out any administrative tasks on the Nacos server.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Secondary3.18.6HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Primary2.07.5HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
Type: Primary
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 8.6
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Type: Primary
Version: 2.0
Base score: 7.5
Base severity: HIGH
Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P
CPE Matches

alibaba
alibaba
>>nacos>>Versions before 1.4.1(exclusive)
cpe:2.3:a:alibaba:nacos:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-290Primarynvd@nist.gov
CWE-290Secondarysecurity-advisories@github.com
CWE ID: CWE-290
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-290
Type: Secondary
Source: security-advisories@github.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/advisories/GHSA-36hp-jr8h-556fsecurity-advisories@github.com
Exploit
Third Party Advisory
https://github.com/alibaba/nacos/issues/4701security-advisories@github.com
Exploit
Third Party Advisory
https://github.com/alibaba/nacos/pull/4703security-advisories@github.com
Patch
Third Party Advisory
Hyperlink: https://github.com/advisories/GHSA-36hp-jr8h-556f
Source: security-advisories@github.com
Resource:
Exploit
Third Party Advisory
Hyperlink: https://github.com/alibaba/nacos/issues/4701
Source: security-advisories@github.com
Resource:
Exploit
Third Party Advisory
Hyperlink: https://github.com/alibaba/nacos/pull/4703
Source: security-advisories@github.com
Resource:
Patch
Third Party Advisory

Change History

0
Information is not available yet

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ShareView Details
Matching Score-4
Assigner-Rapid7, Inc.
CVSS Score-10||CRITICAL
EPSS-75.46% / 98.84%
||
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Sage X3 Unauthenticated Remote Command Execution (RCE) as SYSTEM in AdxDSrv.exe component. By editing the client side authentication request, an attacker can bypass credential validation. While exploiting this does require knowledge of the installation path, that information can be learned by exploiting CVE-2020-7387. This issue was fixed in AdxAdmin 93.2.53, which ships with updates for on-premises versions of Sage X3 including Version 9 (components shipped with Syracuse 9.22.7.2 and later), Sage X3 HR & Payroll Version 9 (those components that ship with Syracuse 9.24.1.3), Version 11 (components shipped with Syracuse 11.25.2.6 and later), and Version 12 (components shipped with Syracuse 12.10.2.8 and later) of Sage X3. Other on-premises versions of Sage X3 are unsupported by the vendor.

Action-Not Available
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Product-x3_hr_\&_payrolladxadminx3X3
CWE ID-CWE-290
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