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CVE-2021-41087— Improperly Implemented path matching for in-toto-golang

Quick assessment

Affected
in-toto in-toto-golang
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Intoto-Golang是一个保护软件供应链完整性的框架。 intoto-golang 存在路径遍历漏洞，经过身份验证的攻击者可以冒充工作人员（即，在布局的受信任用户集内）创建可能绕过同一布局中的 DISALLOW 规则的证明。

CVSS 5.6 · Medium EPSS 0.43% · P36
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I. Basic Information for CVE-2021-41087

Vulnerability Information
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Vulnerability Title
Improperly Implemented path matching for in-toto-golang
Source: CVE Program / CVE List V5
Vulnerability Description
in-toto-golang is a go implementation of the in-toto framework to protect software supply chain integrity. In affected versions authenticated attackers posing as functionaries (i.e., within a trusted set of users for a layout) are able to create attestations that may bypass DISALLOW rules in the same layout. An attacker with access to trusted private keys, may issue an attestation that contains a disallowed artifact by including path traversal semantics (e.g., foo vs dir/../foo). Exploiting this vulnerability is dependent on the specific policy applied. The problem has been fixed in version 0.3.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对数据真实性的验证不充分
Source: CVE Program / CVE List V5
Vulnerability Title
Intoto-Golang 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Intoto-Golang是一个保护软件供应链完整性的框架。 intoto-golang 存在路径遍历漏洞，经过身份验证的攻击者可以冒充工作人员（即，在布局的受信任用户集内）创建可能绕过同一布局中的 DISALLOW 规则的证明。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
in-toto in-toto-golang < 0.3.0 -

II. Public POCs for CVE-2021-41087

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III. Intelligence Information for CVE-2021-41087

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Patches & Fixes for CVE-2021-41087 (1)

Vendor Advisories for CVE-2021-41087 (1)

IV. Related Vulnerabilities

Same vendor: in-toto
Same weakness: CWE-345

V. Comments for CVE-2021-41087

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