Vulnerability Details : CVE-2019-10655
Public exploit exists!
Grandstream GAC2500 1.0.3.35, GXP2200 1.0.3.27, GVC3202 1.0.3.51, GXV3275 before 1.0.3.219 Beta, and GXV3240 before 1.0.3.219 Beta devices allow unauthenticated remote code execution via shell metacharacters in a /manager?action=getlogcat priority field, in conjunction with a buffer overflow (via the phonecookie cookie) to overwrite a data structure and consequently bypass authentication. This can be exploited remotely or via CSRF because the cookie can be placed in an Accept HTTP header in an XMLHttpRequest call to lighttpd.
Vulnerability category: OverflowCross-site request forgery (CSRF)Execute code
Products affected by CVE-2019-10655
- cpe:2.3:o:grandstream:gac2500_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:grandstream:gxp2200_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:grandstream:gvc3202_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:grandstream:gxv3275_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:grandstream:gxv3240_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-10655
90.25%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 99 %
Percentile, the proportion of vulnerabilities that are scored at or less
Metasploit modules for CVE-2019-10655
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Grandstream GXV31XX 'settimezone' Unauthenticated Command Execution
Disclosure Date: 2016-09-01First seen: 2022-12-23exploit/linux/http/grandstream_gxv31xx_settimezone_unauth_cmd_execThis module exploits a command injection vulnerability in Grandstream GXV31XX IP multimedia phones. The 'settimezone' action does not validate input in the 'timezone' parameter allowing injection of arbitrary commands. A buffer overflow in the 'phonecookie'
CVSS scores for CVE-2019-10655
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2019-10655
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The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.Assigned by: nvd@nist.gov (Primary)
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The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: nvd@nist.gov (Primary)
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The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-10655
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http://packetstormsecurity.com/files/165643/Grandstream-GXV3175-Unauthenticated-Command-Execution.html
Grandstream GXV3175 Unauthenticated Command Execution ≈ Packet StormExploit;Third Party Advisory;VDB Entry
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https://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=23920&dl=1
Third Party Advisory
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https://github.com/scarvell/grandstream_exploits
GitHub - scarvell/grandstream_exploitsExploit;Third Party Advisory
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http://packetstormsecurity.com/files/165931/Grandstream-GXV31XX-settimezone-Unauthenticated-Command-Execution.html
Grandstream GXV31XX settimezone Unauthenticated Command Execution ≈ Packet StormExploit;Third Party Advisory;VDB Entry
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