CVE-2020-10188 – telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code
https://notcve.org/view.php?id=CVE-2020-10188
utility.c in telnetd in netkit telnet through 0.17 allows remote attackers to execute arbitrary code via short writes or urgent data, because of a buffer overflow involving the netclear and nextitem functions. El archivo utility.c en telnetd en netkit telnet versiones hasta 0.17, permite a atacantes remotos ejecutar código arbitrario por medio de escrituras cortas o datos urgentes, debido a un desbordamiento del búfer que involucra a las funciones netclear y nextitem. A vulnerability was found where incorrect bounds checks in the telnet server’s (telnetd) handling of short writes and urgent data, could lead to information disclosure and corruption of heap data. An unauthenticated remote attacker could exploit these bugs by sending specially crafted telnet packets to achieve arbitrary code execution in the telnet server. • https://appgateresearch.blogspot.com/2020/02/bravestarr-fedora-31-netkit-telnetd_28.html https://github.com/krb5/krb5-appl/blob/d00cd671dfe945791b33d4f1f6a5c57ae1667ef8/telnet/telnetd/utility.c#L205-L216 https://lists.debian.org/debian-lts-announce/2020/05/msg00012.html https://lists.debian.org/debian-lts-announce/2020/08/msg00038.html https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7FMTRRQTYKWZD2GMXX3GLZV46OLPCLVK https://lists.fedoraproject.org/archives/list/package-announce%40l • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVE-2015-3006 – Junos: QFX Series: Insufficient entropy on QFX3500 and QFX3600 platforms when the system boots up
https://notcve.org/view.php?id=CVE-2015-3006
On the QFX3500 and QFX3600 platforms, the number of bytes collected from the RANDOM_INTERRUPT entropy source when the device boots up is insufficient, possibly leading to weak or duplicate SSH keys or self-signed SSL/TLS certificates. Entropy increases after the system has been up and running for some time, but immediately after boot, the entropy is very low. This issue only affects the QFX3500 and QFX3600 switches. No other Juniper Networks products or platforms are affected by this weak entropy vulnerability. En las plataformas QFX3500 y QFX3600, el número de bytes recopilados desde la fuente de entropía de RANDOM_INTERRUPT cuando los arranques del dispositivo son insuficientes, conllevando posiblemente a claves SSH débiles o duplicadas o a certificados SSL/TLS auto-firmados. • https://kb.juniper.net/JSA10678 • CWE-331: Insufficient Entropy •
CVE-2015-5361 – Junos: FTPS through SRX opens up wide range of data channel TCP ports
https://notcve.org/view.php?id=CVE-2015-5361
Background For regular, unencrypted FTP traffic, the FTP ALG can inspect the unencrypted control channel and open related sessions for the FTP data channel. These related sessions (gates) are specific to source and destination IPs and ports of client and server. The design intent of the ftps-extensions option (which is disabled by default) is to provide similar functionality when the SRX secures the FTP/FTPS client. As the control channel is encrypted, the FTP ALG cannot inspect the port specific information and will open a wider TCP data channel (gate) from client IP to server IP on all destination TCP ports. In FTP/FTPS client environments to an enterprise network or the Internet, this is the desired behavior as it allows firewall policy to be written to FTP/FTPS servers on well-known control ports without using a policy with destination IP ANY and destination port ANY. • https://kb.juniper.net/JSA10706 • CWE-326: Inadequate Encryption Strength •
CVE-2014-6447
https://notcve.org/view.php?id=CVE-2014-6447
Multiple vulnerabilities exist in Juniper Junos J-Web error handling that may lead to cross site scripting (XSS) issues or crash the J-Web service (DoS). This affects Juniper Junos OS 12.1X44 before 12.1X44-D45, 12.1X46 before 12.1X46-D30, 12.1X47 before 12.1X47-D20, 12.3 before 12.3R8, 12.3X48 before 12.3X48-D10, 13.1 before 13.1R5, 13.2 before 13.2R6, 13.3 before 13.3R4, 14.1 before 14.1R3, 14.1X53 before 14.1X53-D10, 14.2 before 14.2R1, and 15.1 before 15.1R1. Se presentan múltiples vulnerabilidades en el manejo de errores de Juniper Junos J-Web que pueden conllevar a problemas de tipo cross site scripting (XSS) o bloquear el servicio J-Web (DoS). Esto afecta a Juniper Junos OS versiones 12.1X44 anteriores a 12.1X44-D45, versiones 12.1X46 anteriores a 12.1X46-D30, versiones 12.1X47 anteriores a 12.1X47-D20, versiones 12.3 anteriores a 12.3R8, versiones 12.3X48 anteriores a 12.3X48-D10, versiones 13.1 anteriores a 13.1R5, versiones 13.2 anteriores a 13.2 R6, versiones 13.3 anteriores a 13.3R4, versiones 14.1 anteriores a 14.1R3, versiones 14.1X53 anteriores a 14.1X53-D10, versiones 14.2 anteriores a 14.2R1 y versiones 15.1 anteriores a 15.1R1. • http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10682 http://www.securitytracker.com/id/1032846 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVE-2014-6448
https://notcve.org/view.php?id=CVE-2014-6448
Juniper Junos OS 13.2 before 13.2R5, 13.2X51, 13.2X52, and 13.3 before 13.3R3 allow local users to bypass intended restrictions and execute arbitrary Python code via vectors involving shell access. Juniper Junos OS versión 13.2 anteriores a 13.2R5, versiones 13.2X51, 13.2X52 y versión 13.3 anteriores a 13.3R3, permiten a usuarios locales omitir las restricciones previstas y ejecutar código de Python arbitrario por medio de vectores que involucran el acceso de shell. • http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10695 • CWE-269: Improper Privilege Management •