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CVE-2023-30541— TransparentUpgradeableProxy clashing selector calls may not be delegated in @openzeppelin/contracts

Quick assessment

Affected
OpenZeppelin openzeppelin-contracts
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.

OpenZeppelin是一个应用软件。一个安全区块链应用的标准。 OpenZeppelin Contracts 4.8.3之前版本存在安全漏洞，该漏洞源于如果冲突函数具有不同的签名和不兼容的ABI编码，代理可能会在试图解码来自calldata的参数时回退。

CVSS 5.3 · Medium EPSS 0.81% · P56

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2023-30541

Vulnerability Information
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Vulnerability Title
TransparentUpgradeableProxy clashing selector calls may not be delegated in @openzeppelin/contracts
Source: CVE Program / CVE List V5
Vulnerability Description
OpenZeppelin Contracts is a library for secure smart contract development. A function in the implementation contract may be inaccessible if its selector clashes with one of the proxy's own selectors. Specifically, if the clashing function has a different signature with incompatible ABI encoding, the proxy could revert while attempting to decode the arguments from calldata. The probability of an accidental clash is negligible, but one could be caused deliberately and could cause a reduction in availability. The issue has been fixed in version 4.8.3. As a workaround if a function appears to be inaccessible for this reason, it may be possible to craft the calldata such that ABI decoding does not fail at the proxy and the function is properly proxied through.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
解释冲突
Source: CVE Program / CVE List V5
Vulnerability Title
OpenZeppelin 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenZeppelin是一个应用软件。一个安全区块链应用的标准。 OpenZeppelin Contracts 4.8.3之前版本存在安全漏洞，该漏洞源于如果冲突函数具有不同的签名和不兼容的ABI编码，代理可能会在试图解码来自calldata的参数时回退。
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
OpenZeppelin openzeppelin-contracts @openzeppelin/contracts: >= 3.2.0, < 4.8.3 -

II. Public POCs for CVE-2023-30541

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III. Intelligence Information for CVE-2023-30541

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Patches & Fixes for CVE-2023-30541 (1)

Vendor Advisories for CVE-2023-30541 (1)

Other References for CVE-2023-30541 (1)

IV. Related Vulnerabilities

Same product: openzeppelin-contracts
Same vendor: OpenZeppelin
Same weakness: CWE-436

V. Comments for CVE-2023-30541

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