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CVE-2023-38701— Hydra 输入验证错误漏洞

一分钟漏洞结论

影响对象
input-output-hk hydra
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

Hydra是一款渗透测试工具。 Hydra 0.12.0之前版本存在输入验证错误漏洞，该漏洞源于commit验证器在使用ViaAbort兑换器时包含有缺陷的检查，该检查允许任何用户任意花费验证器上的任何 UTxO，这意味着攻击者可以窃取用户的资金 尝试提交到头部验证器中。

CVSS 9.1 · Critical EPSS 1.13% · P65

可能的 ATT&CK 技术 1 AI

T1498 · Network Denial of Service
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一、 漏洞 CVE-2023-38701 基础信息

漏洞信息
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Vulnerability Title
Hydra's committed UTxOs at Commit validator and UTxOs at Initial validator can be spent arbitrarily by anyone
来源: CVE Program / CVE List V5
Vulnerability Description
Hydra is the layer-two scalability solution for Cardano. Users of the Hydra head protocol send the UTxOs they wish to commit into the Hydra head first to the `commit` validator, where they remain until they are either collected into the `head` validator or the protocol initialisation is aborted and the value in the committed UTxOs is returned to the users who committed them. Prior to version 0.12.0, the `commit` validator contains a flawed check when the `ViaAbort` redeemer is used, which allows any user to spend any UTxO which is at the validator arbitrarily, meaning an attacker can steal the funds that users are trying to commit into the head validator. The intended behavior is that the funds must be returned to the user which committed the funds and can only be performed by a participant of the head. The `initial` validator also is similarly affected as the same flawed check is performed for the `ViaAbort` redeemer. Due to this issue, an attacker can steal any funds that user's try to commit into a Hydra head. Also, an attacker can prevent any Hydra head from being successfully opened. It does not allow an attacker to take funds which have been successfully collected into and currently reside in the `head` validator. Version 0.12.0 contains a fix for this issue.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
来源: CVE Program / CVE List V5
Vulnerability Title
Hydra 输入验证错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Hydra是一款渗透测试工具。 Hydra 0.12.0之前版本存在输入验证错误漏洞，该漏洞源于commit验证器在使用ViaAbort兑换器时包含有缺陷的检查，该检查允许任何用户任意花费验证器上的任何 UTxO，这意味着攻击者可以窃取用户的资金 尝试提交到头部验证器中。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

受影响产品

厂商 产品 影响版本 CPE 订阅
input-output-hk hydra < 0.12.0 -

二、漏洞 CVE-2023-38701 的公开POC

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三、漏洞 CVE-2023-38701 的情报信息

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CVE-2023-38701 补丁与修复 (1)

CVE-2023-38701 厂商安全公告 (1)

CVE-2023-38701 其他参考 (2)

同批安全公告 · input-output-hk · 2023-10-04 · 共 3 条

CVE-2023-42448 8.1 HIGH Hydra 输入验证错误漏洞
CVE-2023-42449 8.1 HIGH Hydra 输入验证错误漏洞

IV. Related Vulnerabilities

Same product: hydra
Same vendor: input-output-hk
Same weakness: CWE-20

V. Comments for CVE-2023-38701

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