CVE-2020-26282
published 2020-12-24CVE-2020-26282: BrowserUp Proxy allows you to manipulate HTTP requests and responses, capture HTTP content, and export performance data as a HAR file. BrowserUp Proxy works…
PriorityP271critical10CVSS 3.1
AVNACLPRNUINSCCHIHAH
EPSS
4.63%
90.6th percentile
BrowserUp Proxy allows you to manipulate HTTP requests and responses, capture HTTP content, and export performance data as a HAR file. BrowserUp Proxy works well as a standalone proxy server, but it is especially useful when embedded in Selenium tests. A Server-Side Template Injection was identified in BrowserUp Proxy enabling attackers to inject arbitrary Java EL expressions, leading to unauthenticated Remote Code Execution (RCE) vulnerability. This has been patched in version 2.1.2.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| browserup | browserup-proxy | < 2.1.2 | 2.1.2 |
| browserup | browserup_proxy | < 2.1.2 | 2.1.2 |
CVSS provenance
nvdv3.110.0CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
ghsa10.0CRITICAL
osv10.0CRITICAL
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
OSV
Server-Side Template Injection
osv·2020-12-24·CVSS 10.0
CVE-2020-26282 [CRITICAL] Server-Side Template Injection
Server-Side Template Injection
### Impact
A Server-Side Template Injection was identified in BrowserUp Proxy enabling attackers to inject arbitrary Java EL expressions, leading to unauthenticated Remote Code Execution (RCE) vulnerability. This has been assigned CVE-2020-26282.
### Patches
Effective Immediately, all users should upgrade to version 2.1.2 or higher.
### Workarounds
None.
### References
https://securitylab.github.com/research/bean-validation-RCE
### For more information
If you have any questions or comments about this advisory:
* Open an issue in [the BrowserUp Proxy repo](http://github.com/browserup/browserup-proxy)
* Contact us via the [BrowserUp website](https://browserup.com) or email us at [[email protected]](mailto:[email protected])
GHSA
Server-Side Template Injection
ghsa·2020-12-24·CVSS 10.0
CVE-2020-26282 [CRITICAL] CWE-74 Server-Side Template Injection
Server-Side Template Injection
### Impact
A Server-Side Template Injection was identified in BrowserUp Proxy enabling attackers to inject arbitrary Java EL expressions, leading to unauthenticated Remote Code Execution (RCE) vulnerability. This has been assigned CVE-2020-26282.
### Patches
Effective Immediately, all users should upgrade to version 2.1.2 or higher.
### Workarounds
None.
### References
https://securitylab.github.com/research/bean-validation-RCE
### For more information
If you have any questions or comments about this advisory:
* Open an issue in [the BrowserUp Proxy repo](http://github.com/browserup/browserup-proxy)
* Contact us via the [BrowserUp website](https://browserup.com) or email us at [[email protected]](mailto:[email protected])
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/browserup/browserup-proxy/commit/4b38e7a3e20917e5c3329d0d4e9590bed9d578abhttps://github.com/browserup/browserup-proxy/releases/tag/v2.1.2https://github.com/browserup/browserup-proxy/security/advisories/GHSA-wmfg-55f9-j8hqhttps://securitylab.github.com/research/bean-validation-RCEhttps://github.com/browserup/browserup-proxy/commit/4b38e7a3e20917e5c3329d0d4e9590bed9d578abhttps://github.com/browserup/browserup-proxy/releases/tag/v2.1.2https://github.com/browserup/browserup-proxy/security/advisories/GHSA-wmfg-55f9-j8hqhttps://securitylab.github.com/research/bean-validation-RCE
2020-12-24
Published