CVE-2016-1908
CriticalSummary
Klient w OpenSSH przed wersją 7.2 niewłaściwie obsługuje nieudane generowanie ciasteczek dla nieufnego przekazywania X11 i polega na lokalnym serwerze X11 w podejmowaniu decyzji o kontroli dostępu. To pozwala zdalnym klientom X11 na wywołanie mechanizmu awaryjnego i uzyskanie uprawnień do zaufanego przekazywania X11, wykorzystując problemy konfiguracyjne na tym serwerze X11.
Risk Assessment
Organizacja może być narażona na nieautoryzowany dostęp do zaufanego przekazywania X11, co może prowadzić do ujawnienia danych lub przejęcia kontroli nad systemem. Wykorzystanie tej podatności może skutkować poważnymi konsekwencjami dla bezpieczeństwa infrastruktury IT.
Recommendation
Zaleca się aktualizację OpenSSH do wersji 7.2 lub nowszej oraz przegląd konfiguracji serwera X11 w celu zapewnienia, że jest on odpowiednio zabezpieczony i posiada wymagane rozszerzenia bezpieczeństwa.
Related vulnerabilities
- CVE-2026-121953Critical
FreeRDP before 3.32.2 has a use-after-free in the client's rdpgfx dynamic virtual channel: a duplicate-name channel with a new ChannelId overwrites the listener's single callback slot, which rdpgfx_on_close frees without clearing. A malicious RDP server can open and close such a channel, then send a PDU on the original channel to crash the client or potentially execute code.
- CVE-2026-121952Critical
FreeRDP before 3.32.2 has an out-of-bounds write in the proxy because rdp_read_bitmap_cache_v2_capability_set rejects only numCellCaches values above 5, yet the bitmap cache v2 cell array is later accessed at fixed indices 0 through 4. A client connecting to the proxy can declare fewer than five cell caches in its Confirm Active, causing heap corruption, heap data leakage to the backend, or a crash.
- CVE-2026-122006Critical
The activestorage gem before 8.1.4.1 for Ruby on Rails, when ImageMagick attachment processing occurs, can allow server read and write operations (e.g., reading secret_key_base) because the ImageMagick analyzer runs when a file is attached, and there is not an ImageMagick security policy to block unintended functionality.
- CVE-2026-121640Critical
An Authentication Bypass by Capture-replay vulnerability in WatchGuard AuthPoint Gateway allows an attacker who has observed a legitimate request between AuthPoint Gateway components to replay it and perform unauthorized administrative actions, including disrupting authentication services.
- CVE-2026-121639Critical
A Missing Authentication for Critical Function vulnerability in WatchGuard AuthPoint Gateway allows a remote unauthenticated attacker with network access to the AuthPoint Gateway host to disrupt authentication services and delete the local directory synchronization configuration.
- CVE-2026-121638Critical
An Improper Certificate Validation vulnerability in WatchGuard AuthPoint Gateway allows an attacker with an on-path network position to intercept and modify communications between the AuthPoint Gateway and local authentication providers.
- CVE-2026-65555Critical
The Uncanny Toolkit for LearnDash plugin (through version 3.8.2) contains an incorrect privilege assignment vulnerability that allows privilege escalation. A low-privileged user can gain access to functionality reserved for higher roles.
- CVE-2026-119481Critical
The JetFormBuilder plugin (through version 3.6.7.1) contains an incorrect privilege assignment vulnerability enabling privilege escalation. A low-privileged user can perform actions reserved for higher roles.
- CVE-2026-114425Critical
SEPPmail Secure Email Gateway before 15.1.1 trusts a file path supplied in externally provided Large File Transfer attachment metadata. An unauthenticated remote sender can cause the mail-processing worker to disclose, move, or delete an accessible regular file when LFT is enabled and the message reaches an affected secure-mail processing path. The validated workers ran as root.
- CVE-2026-114424Critical
SEPPmail Secure Email Gateway before 15.1.1 can evaluate attacker-influenced replacement text as Perl code in sender or recipient replacement rules. An unauthenticated remote sender can execute operating-system commands in the mail-processing worker context when an active rule uses message-derived replacement data and its search condition matches. The validated worker context was root.
Original NVD description (English source)
The client in OpenSSH before 7.2 mishandles failed cookie generation for untrusted X11 forwarding and relies on the local X11 server for access-control decisions, which allows remote X11 clients to trigger a fallback and obtain trusted X11 forwarding privileges by leveraging configuration issues on this X11 server, as demonstrated by lack of the SECURITY extension on this X11 server.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

