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CVE-2023-51451— SSRF in symbolicator via invalid protocol

Quick assessment

Affected
getsentry symbolicator
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Symbolicator是用于本机堆栈跟踪和小型转储的符号服务，具有符号服务器支持。 Symbolicator 0.3.3至21.12.1之前版本存在安全漏洞，该漏洞源于允许攻击者使用无效协议使Symbolicater向任意URL发送GET HTTP请求。

CVSS 4.3 · Medium EPSS 0.47% · P39
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I. Basic Information for CVE-2023-51451

Vulnerability Information
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Vulnerability Title
SSRF in symbolicator via invalid protocol
Source: CVE Program / CVE List V5
Vulnerability Description
Symbolicator is a service used in Sentry. Starting in Symbolicator version 0.3.3 and prior to version 21.12.1, an attacker could make Symbolicator send GET HTTP requests to arbitrary URLs with internal IP addresses by using an invalid protocol. The responses of those requests could be exposed via Symbolicator's API. In affected Sentry instances, the data could be exposed through the Sentry API and user interface if the attacker has a registered account. The issue has been fixed in Symbolicator release 23.12.1, Sentry self-hosted release 23.12.1, and has already been mitigated on sentry.io on December 18, 2023. If updating is not possible, some other mitigations are available. One may disable JS processing by toggling the option `Allow JavaScript Source Fetching` in `Organization Settings > Security & Privacy` and/or disable all untrusted public repositories under `Project Settings > Debug Files`. Alternatively, if JavaScript and native symbolication are not required, disable Symbolicator completely in `config.yml`.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Symbolicator 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Symbolicator是用于本机堆栈跟踪和小型转储的符号服务，具有符号服务器支持。 Symbolicator 0.3.3至21.12.1之前版本存在安全漏洞，该漏洞源于允许攻击者使用无效协议使Symbolicater向任意URL发送GET HTTP请求。
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
getsentry symbolicator >= 0.3.3, < 23.12.1 -

II. Public POCs for CVE-2023-51451

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Success marker: VULNERABLE: PROOF_90ebfafef86172b8 exfiltrated via SSRF in symbolicator API response
Reproduction recording is a Pro+ exclusive
Watch the full sandbox build + live exploit recording for this CVE. Limited-time ¥499/mo.
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claude_code · 13651 chars
GitHub 复现环境（可 clone 直接跑）
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III. Intelligence Information for CVE-2023-51451

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Patches & Fixes for CVE-2023-51451 (1)

Vendor Advisories for CVE-2023-51451 (1)

Other References for CVE-2023-51451 (2)

IV. Related Vulnerabilities

Same product: symbolicator
Same vendor: getsentry
Same weakness: CWE-918

V. Comments for CVE-2023-51451

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