Ntop
Monthly
Heap buffer overflow in ntop nDPI before version 6.0 allows unauthenticated network-adjacent or remote attackers to corrupt process heap memory by sending crafted packets containing TLS SNI values, HTTP headers, or DNS names with characters that expand during JSON escaping. The root cause in ndpi_json_string_escape (src/lib/ndpi_serializer.c) is that the original bounds check guarded only single-byte writes while escape sequences requiring 2 bytes (e.g., backslash-quote) or 6 bytes (e.g., \u00XX control-character escapes) silently overran the caller-supplied buffer. Vendor-released patch is available via commit 94e82c1 targeting the 6.0 release; no public exploit has been identified at time of analysis.
Missing authorization on the host pool bulk-delete REST endpoint in ntopng before 6.7.260717 allows any authenticated low-privileged user to irreversibly destroy all configured host pools and their member bindings via a POST request. The flaw (CWE-862) bypasses ntopng's capability-based access control model, enabling non-administrator accounts to eliminate traffic policy segmentation, rate-limit assignments, and visibility restrictions that network security teams depend on. No public exploit has been identified at time of analysis, and a patch commit is available in version 6.7.260717.
Missing authorization in ntopng's REST v2 API allows any authenticated low-privilege user to permanently delete all configured notification endpoints and recipients, silencing the entire alert pipeline. Affected versions are all ntopng releases before 6.7.260717; the vendor confirmed and patched the flaw via GitHub Security Advisory GHSA-m22w-f647-vx88. No public exploit code has been identified at time of analysis, but the attack requires only a valid user session and a straightforward POST request, making exploitation trivially simple for any authenticated ntopng account holder.
Missing authorization on two REST v2 tag-management endpoints in ntopng 6.7.0-6.7.260717 allows any authenticated low-privilege user to delete or rename tags system-wide, including those created by administrators. The affected endpoints - POST /lua/rest/v2/delete/tag/tag.lua and POST /lua/rest/v2/edit/tag/tag.lua - perform no isAdministrator() check before processing requests. The fix, confirmed in commit 0e41f24b and released as version 6.7.260718, adds the missing privilege gate to both Lua handlers. No public exploit or KEV listing identified at time of analysis.
Open redirect vulnerability in ntopng allows remote attackers to redirect users to arbitrary external websites via a crafted URL parameter. The vulnerability requires user interaction (clicking a malicious link) but affects all versions of ntopng with no authentication barrier, exposing users to phishing and credential harvesting attacks when they trust the legitimacy of the ntopng domain.
nDPI through 4.12 has a potential stack-based buffer overflow in ndpi_address_cache_restore in lib/ndpi_cache.c. Rated high severity (CVSS 8.1), this vulnerability is no authentication required.
ntop nDPI 3.4 has a stack-based buffer overflow in processClientServerHello. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
In nDPI through 3.2, the Oracle protocol dissector has a heap-based buffer over-read in ndpi_search_oracle in lib/protocols/oracle.c. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
In nDPI through 3.2, ndpi_reset_packet_line_info in lib/ndpi_main.c omits certain reinitialization, leading to a use-after-free. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.
In nDPI through 3.2, there is a stack overflow in extractRDNSequence in lib/protocols/tls.c. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Out-of-bounds Write vulnerability could allow attackers to write data beyond allocated buffer boundaries leading to code execution or crashes.
In nDPI through 3.2, the OpenVPN dissector is vulnerable to a heap-based buffer over-read in ndpi_search_openvpn in lib/protocols/openvpn.c. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
In nDPI through 3.2, the H.323 dissector is vulnerable to a heap-based buffer over-read in ndpi_search_h323 in lib/protocols/h323.c, as demonstrated by a payload packet length that is too short. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.
In nDPI through 3.2, the packet parsing code is vulnerable to a heap-based buffer over-read in ndpi_parse_packet_line_info in lib/ndpi_main.c. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
In nDPI through 3.2 Stable, an out-of-bounds read in concat_hash_string in ssh.c can be exploited by a network-positioned attacker that can send malformed SSH protocol messages on a network segment. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
In nDPI through 3.2 Stable, the SSH protocol dissector has multiple KEXINIT integer overflows that result in a controlled remote heap overflow in concat_hash_string in ssh.c. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
An issue was discovered in ntopng 3.4 before 3.4.180617. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. Public exploit code available.
The NetworkInterface::getHost function in NetworkInterface.cpp in ntopng before 3.0 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
ntopng before 3.0 allows HTTP Response Splitting. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
ntopng before 3.0 allows XSS because GET and POST parameters are improperly validated. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.
Cross-site request forgery (CSRF) vulnerability in ntopng through 2.4 allows remote attackers to hijack the authentication of arbitrary users, as demonstrated by admin/add_user.lua,. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
ntopng (aka ntop) before 2.2 allows remote authenticated users to change the login context and gain privileges via the user cookie and username parameter to admin/password_reset.lua. Rated medium severity (CVSS 6.0), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.
Cross-site scripting (XSS) vulnerability in the nDPI traffic classification library in ntopng (aka ntop) before 1.2.1 allows remote attackers to inject arbitrary web script or HTML via the HTTP Host. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. Public exploit code available and EPSS exploitation probability 23.2%.
Cross-site scripting (XSS) vulnerability in lua/host_details.lua in ntopng 1.1 allows remote attackers to inject arbitrary web script or HTML via the host parameter. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.
Cross-site scripting (XSS) vulnerability in ntop allows remote attackers to inject arbitrary web script or HTML via the title parameter in a list action to plugins/rrdPlugin. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.
Heap buffer overflow in ntop nDPI before version 6.0 allows unauthenticated network-adjacent or remote attackers to corrupt process heap memory by sending crafted packets containing TLS SNI values, HTTP headers, or DNS names with characters that expand during JSON escaping. The root cause in ndpi_json_string_escape (src/lib/ndpi_serializer.c) is that the original bounds check guarded only single-byte writes while escape sequences requiring 2 bytes (e.g., backslash-quote) or 6 bytes (e.g., \u00XX control-character escapes) silently overran the caller-supplied buffer. Vendor-released patch is available via commit 94e82c1 targeting the 6.0 release; no public exploit has been identified at time of analysis.
Missing authorization on the host pool bulk-delete REST endpoint in ntopng before 6.7.260717 allows any authenticated low-privileged user to irreversibly destroy all configured host pools and their member bindings via a POST request. The flaw (CWE-862) bypasses ntopng's capability-based access control model, enabling non-administrator accounts to eliminate traffic policy segmentation, rate-limit assignments, and visibility restrictions that network security teams depend on. No public exploit has been identified at time of analysis, and a patch commit is available in version 6.7.260717.
Missing authorization in ntopng's REST v2 API allows any authenticated low-privilege user to permanently delete all configured notification endpoints and recipients, silencing the entire alert pipeline. Affected versions are all ntopng releases before 6.7.260717; the vendor confirmed and patched the flaw via GitHub Security Advisory GHSA-m22w-f647-vx88. No public exploit code has been identified at time of analysis, but the attack requires only a valid user session and a straightforward POST request, making exploitation trivially simple for any authenticated ntopng account holder.
Missing authorization on two REST v2 tag-management endpoints in ntopng 6.7.0-6.7.260717 allows any authenticated low-privilege user to delete or rename tags system-wide, including those created by administrators. The affected endpoints - POST /lua/rest/v2/delete/tag/tag.lua and POST /lua/rest/v2/edit/tag/tag.lua - perform no isAdministrator() check before processing requests. The fix, confirmed in commit 0e41f24b and released as version 6.7.260718, adds the missing privilege gate to both Lua handlers. No public exploit or KEV listing identified at time of analysis.
Open redirect vulnerability in ntopng allows remote attackers to redirect users to arbitrary external websites via a crafted URL parameter. The vulnerability requires user interaction (clicking a malicious link) but affects all versions of ntopng with no authentication barrier, exposing users to phishing and credential harvesting attacks when they trust the legitimacy of the ntopng domain.
nDPI through 4.12 has a potential stack-based buffer overflow in ndpi_address_cache_restore in lib/ndpi_cache.c. Rated high severity (CVSS 8.1), this vulnerability is no authentication required.
ntop nDPI 3.4 has a stack-based buffer overflow in processClientServerHello. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
In nDPI through 3.2, the Oracle protocol dissector has a heap-based buffer over-read in ndpi_search_oracle in lib/protocols/oracle.c. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
In nDPI through 3.2, ndpi_reset_packet_line_info in lib/ndpi_main.c omits certain reinitialization, leading to a use-after-free. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Use After Free vulnerability could allow attackers to access freed memory to execute arbitrary code or crash the application.
In nDPI through 3.2, there is a stack overflow in extractRDNSequence in lib/protocols/tls.c. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Out-of-bounds Write vulnerability could allow attackers to write data beyond allocated buffer boundaries leading to code execution or crashes.
In nDPI through 3.2, the OpenVPN dissector is vulnerable to a heap-based buffer over-read in ndpi_search_openvpn in lib/protocols/openvpn.c. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
In nDPI through 3.2, the H.323 dissector is vulnerable to a heap-based buffer over-read in ndpi_search_h323 in lib/protocols/h323.c, as demonstrated by a payload packet length that is too short. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Out-of-bounds Read vulnerability could allow attackers to read data from memory outside the intended buffer boundaries.
In nDPI through 3.2, the packet parsing code is vulnerable to a heap-based buffer over-read in ndpi_parse_packet_line_info in lib/ndpi_main.c. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
In nDPI through 3.2 Stable, an out-of-bounds read in concat_hash_string in ssh.c can be exploited by a network-positioned attacker that can send malformed SSH protocol messages on a network segment. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
In nDPI through 3.2 Stable, the SSH protocol dissector has multiple KEXINIT integer overflows that result in a controlled remote heap overflow in concat_hash_string in ssh.c. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
An issue was discovered in ntopng 3.4 before 3.4.180617. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. Public exploit code available.
The NetworkInterface::getHost function in NetworkInterface.cpp in ntopng before 3.0 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via an empty. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
ntopng before 3.0 allows HTTP Response Splitting. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
ntopng before 3.0 allows XSS because GET and POST parameters are improperly validated. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Cross-Site Scripting (XSS) vulnerability could allow attackers to inject malicious scripts into web pages viewed by other users.
Cross-site request forgery (CSRF) vulnerability in ntopng through 2.4 allows remote attackers to hijack the authentication of arbitrary users, as demonstrated by admin/add_user.lua,. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
ntopng (aka ntop) before 2.2 allows remote authenticated users to change the login context and gain privileges via the user cookie and username parameter to admin/password_reset.lua. Rated medium severity (CVSS 6.0), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.
Cross-site scripting (XSS) vulnerability in the nDPI traffic classification library in ntopng (aka ntop) before 1.2.1 allows remote attackers to inject arbitrary web script or HTML via the HTTP Host. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. Public exploit code available and EPSS exploitation probability 23.2%.
Cross-site scripting (XSS) vulnerability in lua/host_details.lua in ntopng 1.1 allows remote attackers to inject arbitrary web script or HTML via the host parameter. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.
Cross-site scripting (XSS) vulnerability in ntop allows remote attackers to inject arbitrary web script or HTML via the title parameter in a list action to plugins/rrdPlugin. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.