p PatchFirst

PatchFirst · Свежие уязвимости

Уязвимости dropbear

За последние 30 дней в dropbear опубликовано уязвимостей: 0; в каталоге KEV: 0.

Фильтры уязвимостей
Сбросить фильтры

Уязвимостей: 24

  1. CVE-2026-3706

    Средний · CVSS 6.3EPSS 0,17%Есть исправление

    mkj Dropbear S Range Check curve25519.c unpackneg signature verification

    A vulnerability was determined in mkj Dropbear up to 2025.89. Impacted is the function unpackneg of the file src/curve25519.c of the component S Range Check. This manipulation causes improper verification of cryptographic signature. The attack can be initiated remotely. The attack is considered to have high complexity. The exploitability is considered difficult. The actual existence of this vulnerability is currently in question. Patch name: fdec3c90a15447bd538641d85e5a3e3ac981011d. To fix this issue, it is recommended to deploy a patch. The project maintainer explains: "Signature Malleability is not exploitable in SSH protocol. (...) [A] PoC

    • Обновитесь до 2026.90-1
  2. CVE-2025-14282

    Средний · CVSS 5.4EPSS 0,4%Есть исправление

    Dropbear: privilege escalation via unix domain socket forwardings

    A flaw was found in Dropbear. When running in multi-user mode and authenticating users, the dropbear ssh server does the socket forwardings requested by the remote client as root, only switching to the logged-in user upon spawning a shell or performing some operations like reading the user's files. With the recent ability of also using unix domain sockets as the forwarding destination any user able to log in via ssh can connect to any unix socket with the root's credentials, bypassing both file system restrictions and any SO_PEERCRED / SO_PASSCRED checks performed by the peer.

    • Обновитесь до 2025.89-1
    Опубликовано Обновлено
  3. CVE-2023-48795

    Средний · CVSS 5.9EPSS 93,55%Публичный эксплойтЕсть исправление

    CVE-2023-48795

    The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack. This occurs because the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of ChaCha20-Poly1305 (and CBC with E

    • Обновитесь до 2022.83-4
    Опубликовано Обновлено
  4. CVE-2021-36369

    Высокий · CVSS 7.5EPSS 1,86%Есть исправление

    CVE-2021-36369

    An issue was discovered in Dropbear through 2020.81. Due to a non-RFC-compliant check of the available authentication methods in the client-side SSH code, it is possible for an SSH server to change the login process in its favor. This attack can bypass additional security measures such as FIDO2 tokens or SSH-Askpass. Thus, it allows an attacker to abuse a forwarded agent for logging on to another server unnoticed.

    • Обновитесь до 2022.82-1
  5. CVE-2017-2659

    Средний · CVSS 5.3EPSS 1,5%Есть исправление

    CVE-2017-2659

    It was found that dropbear before version 2013.59 with GSSAPI leaks whether given username is valid or invalid. When an invalid username is given, the GSSAPI authentication failure was incorrectly counted towards the maximum allowed number of password attempts.

    • Обновитесь до 2013.60-1
    Опубликовано Обновлено
  6. CVE-2018-15599

    Средний · CVSS 5.3EPSS 2,69%Есть исправление

    CVE-2018-15599

    The recv_msg_userauth_request function in svr-auth.c in Dropbear through 2018.76 is prone to a user enumeration vulnerability because username validity affects how fields in SSH_MSG_USERAUTH messages are handled, a similar issue to CVE-2018-15473 in an unrelated codebase.

    • Обновитесь до 2018.76-4
    Опубликовано Обновлено
  7. CVE-2017-9079

    Средний · CVSS 4.7EPSS 0,31%Есть исправление

    CVE-2017-9079

    Dropbear before 2017.75 might allow local users to read certain files as root, if the file has the authorized_keys file format with a command= option. This occurs because ~/.ssh/authorized_keys is read with root privileges and symlinks are followed.

    • Обновитесь до 2016.74-5
  8. CVE-2017-9078

    Высокий · CVSS 8.8EPSS 5,47%Есть исправление

    CVE-2017-9078

    The server in Dropbear before 2017.75 might allow post-authentication root remote code execution because of a double free in cleanup of TCP listeners when the -a option is enabled.

    • Обновитесь до 2016.74-5
  9. CVE-2016-7409

    Средний · CVSS 5.5EPSS 0,49%Есть исправление

    CVE-2016-7409

    The dbclient and server in Dropbear SSH before 2016.74, when compiled with DEBUG_TRACE, allows local users to read process memory via the -v argument, related to a failed remote ident.

    • Обновитесь до 2016.74-1
    Опубликовано Обновлено
  10. CVE-2016-7408

    Высокий · CVSS 8.8EPSS 4,26%Есть исправление

    CVE-2016-7408

    The dbclient in Dropbear SSH before 2016.74 allows remote attackers to execute arbitrary code via a crafted (1) -m or (2) -c argument.

    • Обновитесь до 2016.74-1
    Опубликовано Обновлено
  11. CVE-2016-7407

    Критический · CVSS 9.8EPSS 5,8%Есть исправление

    CVE-2016-7407

    The dropbearconvert command in Dropbear SSH before 2016.74 allows attackers to execute arbitrary code via a crafted OpenSSH key file.

    • Обновитесь до 2016.74-1
    Опубликовано Обновлено
  12. CVE-2016-7406

    Критический · CVSS 9.8EPSS 10,22%Есть исправление

    CVE-2016-7406

    Format string vulnerability in Dropbear SSH before 2016.74 allows remote attackers to execute arbitrary code via format string specifiers in the (1) username or (2) host argument.

    • Обновитесь до 2016.74-1
  13. CVE-2016-3116

    Средний · CVSS 6.4EPSS 19,8%Публичный эксплойтЕсть исправление

    CVE-2016-3116

    CRLF injection vulnerability in Dropbear SSH before 2016.72 allows remote authenticated users to bypass intended shell-command restrictions via crafted X11 forwarding data.

    • Обновитесь до 2016.72-1
    Опубликовано Обновлено
  14. CVE-2013-4434

    Без оценкиEPSS 5,75%Есть исправление

    CVE-2013-4434

    Dropbear SSH Server before 2013.59 generates error messages for a failed logon attempt with different time delays depending on whether the user account exists, which allows remote attackers to discover valid usernames.

    • Обновитесь до 2012.55-1.4
    Опубликовано Обновлено
  15. CVE-2013-4421

    Без оценкиEPSS 6,42%Есть исправление

    CVE-2013-4421

    The buf_decompress function in packet.c in Dropbear SSH Server before 2013.59 allows remote attackers to cause a denial of service (memory consumption) via a compressed packet that has a large size when it is decompressed.

    • Обновитесь до 2012.55-1.4
    Опубликовано Обновлено
  16. CVE-2012-0920

    Без оценкиEPSS 6,42%Есть исправление

    CVE-2012-0920

    Use-after-free vulnerability in Dropbear SSH Server 0.52 through 2012.54, when command restriction and public key authentication are enabled, allows remote authenticated users to execute arbitrary code and bypass command restrictions via multiple crafted command requests, related to "channels concurrency."

    • Обновитесь до 2012.55-1
  17. CVE-2007-1099

    Без оценкиEPSS 2,17%Есть исправление

    CVE-2007-1099

    dbclient in Dropbear SSH client before 0.49 does not sufficiently warn the user when it detects a hostkey mismatch, which might allow remote attackers to conduct man-in-the-middle attacks.

    • Обновитесь до 0.49-1
    Опубликовано Обновлено

Проверьте свой сервер

Сопоставьте установленный стек и версии со свежими базами уязвимостей.

Проверьте свой сервер →