Qualys

21 exploits Active since Jan 2015
CVE-2021-4034 NOMISEC HIGH WORKING POC
Local Privilege Escalation in polkits pkexec
A local privilege escalation vulnerability was found on polkit's pkexec utility. The pkexec application is a setuid tool designed to allow unprivileged users to run commands as privileged users according predefined policies. The current version of pkexec doesn't handle the calling parameters count correctly and ends trying to execute environment variables as commands. An attacker can leverage this by crafting environment variables in such a way it'll induce pkexec to execute arbitrary code. When successfully executed the attack can cause a local privilege escalation given unprivileged users administrative rights on the target machine.
26 stars
CVSS 7.8
CVE-2021-3156 NOMISEC HIGH WORKING POC
Sudo Heap-Based Buffer Overflow
Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.
5 stars
CVSS 7.8
CVE-2015-0235 NOMISEC WORKING POC
Exim GHOST (glibc gethostbyname) Buffer Overflow
Heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc 2.2, and other 2.x versions before 2.18, allows context-dependent attackers to execute arbitrary code via vectors related to the (1) gethostbyname or (2) gethostbyname2 function, aka "GHOST."
1 stars
CVE-2015-3246 METASPLOIT ruby WORKING POC
libuser <0.56.13-8 & 0.60 <0.60-7 - DoS
libuser before 0.56.13-8 and 0.60 before 0.60-7, as used in the userhelper program in the usermode package, directly modifies /etc/passwd, which allows local users to cause a denial of service (inconsistent file state) by causing an error during the modification. NOTE: this issue can be combined with CVE-2015-3245 to gain privileges.
CVE-2021-4034 VULNCHECK_XDB HIGH WORKING POC
Local Privilege Escalation in polkits pkexec
A local privilege escalation vulnerability was found on polkit's pkexec utility. The pkexec application is a setuid tool designed to allow unprivileged users to run commands as privileged users according predefined policies. The current version of pkexec doesn't handle the calling parameters count correctly and ends trying to execute environment variables as commands. An attacker can leverage this by crafting environment variables in such a way it'll induce pkexec to execute arbitrary code. When successfully executed the attack can cause a local privilege escalation given unprivileged users administrative rights on the target machine.
CVSS 7.8
CVE-2015-3245 EXPLOITDB ruby WORKING POC
libuser < 0.56.13-8 and 0.60 < 0.60-7 - Denial of Service via GECOS Field Newline Injection
Incomplete blacklist vulnerability in the chfn function in libuser before 0.56.13-8 and 0.60 before 0.60-7, as used in the userhelper program in the usermode package, allows local users to cause a denial of service (/etc/passwd corruption) via a newline character in the GECOS field.
CVE-2018-15473 METASPLOIT MEDIUM ruby WORKING POC
OpenSSH < 7.7 - User Enumeration via Authentication Request Timing
OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying bailout for an invalid authenticating user until after the packet containing the request has been fully parsed, related to auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c.
CVSS 5.3
CVE-2020-8794 METASPLOIT CRITICAL ruby WORKING POC
OpenSMTPD OOB Read Local Privilege Escalation
OpenSMTPD before 6.6.4 allows remote code execution because of an out-of-bounds read in mta_io in mta_session.c for multi-line replies. Although this vulnerability affects the client side of OpenSMTPD, it is possible to attack a server because the server code launches the client code during bounce handling.
CVSS 9.8
CVE-2020-7247 METASPLOIT CRITICAL ruby WORKING POC
OpenSMTPD 6.6 - Remote Code Execution via MAIL FROM Field
smtp_mailaddr in smtp_session.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session, as demonstrated by shell metacharacters in a MAIL FROM field. This affects the "uncommented" default configuration. The issue exists because of an incorrect return value upon failure of input validation.
CVSS 9.8
CVE-2019-19726 METASPLOIT HIGH ruby WORKING POC
OpenBSD Dynamic Loader chpass Privilege Escalation
OpenBSD through 6.6 allows local users to escalate to root because a check for LD_LIBRARY_PATH in setuid programs can be defeated by setting a very small RLIMIT_DATA resource limit. When executing chpass or passwd (which are setuid root), _dl_setup_env in ld.so tries to strip LD_LIBRARY_PATH from the environment, but fails when it cannot allocate memory. Thus, the attacker is able to execute their own library code as root.
CVSS 7.8
CVE-2015-3245 METASPLOIT ruby WORKING POC
libuser < 0.56.13-8 and 0.60 < 0.60-7 - Denial of Service via GECOS Field Newline Injection
Incomplete blacklist vulnerability in the chfn function in libuser before 0.56.13-8 and 0.60 before 0.60-7, as used in the userhelper program in the usermode package, allows local users to cause a denial of service (/etc/passwd corruption) via a newline character in the GECOS field.
CVE-2021-3156 METASPLOIT HIGH ruby WORKING POC
Sudo Heap-Based Buffer Overflow
Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.
CVSS 7.8
CVE-2019-10149 METASPLOIT CRITICAL ruby WORKING POC
Exim 4.87 - 4.91 Local Privilege Escalation
A flaw was found in Exim versions 4.87 to 4.91 (inclusive). Improper validation of recipient address in deliver_message() function in /src/deliver.c may lead to remote command execution.
CVSS 9.8
CVE-2024-48990 METASPLOIT HIGH ruby WORKING POC
Ubuntu needrestart Privilege Escalation
Qualys discovered that needrestart, before version 3.8, allows local attackers to execute arbitrary code as root by tricking needrestart into running the Python interpreter with an attacker-controlled PYTHONPATH environment variable.
CVSS 7.8
CVE-2019-19726 EXPLOITDB HIGH ruby WORKING POC
OpenBSD Dynamic Loader chpass Privilege Escalation
OpenBSD through 6.6 allows local users to escalate to root because a check for LD_LIBRARY_PATH in setuid programs can be defeated by setting a very small RLIMIT_DATA resource limit. When executing chpass or passwd (which are setuid root), _dl_setup_env in ld.so tries to strip LD_LIBRARY_PATH from the environment, but fails when it cannot allocate memory. Thus, the attacker is able to execute their own library code as root.
CVSS 7.8
CVE-2020-7247 EXPLOITDB CRITICAL ruby WORKING POC
OpenSMTPD 6.6 - Remote Code Execution via MAIL FROM Field
smtp_mailaddr in smtp_session.c in OpenSMTPD 6.6, as used in OpenBSD 6.6 and other products, allows remote attackers to execute arbitrary commands as root via a crafted SMTP session, as demonstrated by shell metacharacters in a MAIL FROM field. This affects the "uncommented" default configuration. The issue exists because of an incorrect return value upon failure of input validation.
CVSS 9.8
CVE-2019-10149 EXPLOITDB CRITICAL text WRITEUP
Exim 4.87 - 4.91 Local Privilege Escalation
A flaw was found in Exim versions 4.87 to 4.91 (inclusive). Improper validation of recipient address in deliver_message() function in /src/deliver.c may lead to remote command execution.
CVSS 9.8
CVE-2020-8793 EXPLOITDB MEDIUM c WORKING POC
OpenSMTPD < 6.6.4 - Local Arbitrary File Read via Race Condition in makemap.c and smtpd.c
OpenSMTPD before 6.6.4 allows local users to read arbitrary files (e.g., on some Linux distributions) because of a combination of an untrusted search path in makemap.c and race conditions in the offline functionality in smtpd.c.
CVSS 4.7
CVE-2019-10149 EXPLOITDB CRITICAL ruby WORKING POC
Exim 4.87 - 4.91 Local Privilege Escalation
A flaw was found in Exim versions 4.87 to 4.91 (inclusive). Improper validation of recipient address in deliver_message() function in /src/deliver.c may lead to remote command execution.
CVSS 9.8
CVE-2015-3246 EXPLOITDB ruby WORKING POC
libuser <0.56.13-8 & 0.60 <0.60-7 - DoS
libuser before 0.56.13-8 and 0.60 before 0.60-7, as used in the userhelper program in the usermode package, directly modifies /etc/passwd, which allows local users to cause a denial of service (inconsistent file state) by causing an error during the modification. NOTE: this issue can be combined with CVE-2015-3245 to gain privileges.
CVE-2020-8794 EXPLOITDB CRITICAL ruby WORKING POC
OpenSMTPD OOB Read Local Privilege Escalation
OpenSMTPD before 6.6.4 allows remote code execution because of an out-of-bounds read in mta_io in mta_session.c for multi-line replies. Although this vulnerability affects the client side of OpenSMTPD, it is possible to attack a server because the server code launches the client code during bounce handling.
CVSS 9.8