Unauthenticated script execution via unfiltered JSONP callback
Published Mar 28, 2024 · Updated Aug 21, 2024
Cross-site scripting in SRS before 5.0.210 and 6.0.0 through 6.0.120 allows remote attackers to execute JavaScript via JSONP. SrsHttpMessage::set_url treats any nonempty callback parameter as a function name and emits it into the JSONP response without character validation. No authentication is required; crafted callback syntax executes in the SRS console origin, enabling access to data and actions available to that browser context.
Summary
What happened
Cross-site scripting in SRS before 5.0.210 and 6.0.0 through 6.0.120 allows remote attackers to execute JavaScript via JSONP. SrsHttpMessage::set_url treats any nonempty callback parameter as a function name and emits it into the JSONP response without character validation. No authentication is required; crafted callback syntax executes in the SRS console origin, enabling access to data and actions available to that browser context.
The record
- CVE
- CVE-2024-29882
- Published
- Mar 28, 2024
- Updated
- Aug 21, 2024
- Vendor
- Open Source SRS Community
- Product
- SRS (Simple Realtime Server)
- Classifications
- CWE-79, T1059.007
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 28, 2024CVE publishedPublication date reported by the CVE source.
- Aug 21, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <5.0.210
- Affected versionversion=< 5.0.210
- Affected versionversion=>= 6.0.0, < 6.0.121
- Affected versionversion=6.0.0 <6.0.121
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Upstream JSONP callback proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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