by Kastro
Paper/Archive/CVE-2018-25221

CVE-2018-25221

Echatserver EChat Server — EChat Server 3.1 Buffer Overflow via chat.ghp username Parameter

EPSS 0.8%public exploitCVSS 9.8
critical.is priorityof 100
51
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 57.7.577 × 2011.5Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

EChat Server 3.1 contains a buffer overflow vulnerability in the chat.ghp endpoint that allows remote attackers to execute arbitrary code by supplying an oversized username parameter. Attackers can send a GET request to chat.ghp with a malicious username value containing shellcode and ROP gadgets to achieve code execution in the application context.

Affected

ProductAffectedFixed inSource
EChat Server3.1–CNA

Scores by source

VulnCheck (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitexploit-db.com/exploits/44155writeupvulncheck.com/advisories/echat-server-buffer-overflow-via-chat-ghp-username-parameter