The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a database and tools to fix them.
History of vulnerabilities analyzed by Vigil@nce:

vulnerability note CVE-2007-6389

GNOME screensaver: reading the clipboard

Synthesis of the vulnerability

A local attacker can read the contents of the clipboard when the screen is locked with GNOME screensaver.
Severity: 1/4.
Creation date: 02/04/2008.
Identifiers: BID-30096, CVE-2007-6389, FEDORA-2008-2818, FEDORA-2008-2872, MDVSA-2008:132, MDVSA-2008:135, SUSE-SR:2008:017, VIGILANCE-VUL-7720.
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Description of the vulnerability

The "Leave Message" feature of GNOME screensaver can be used to write a message to the user who locked the screen.

However, an attacker can paste the content of the clipboard in the "Leave Message" text field.

Attacker can thus read the last data handled by the user.
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weakness CVE-2008-0047 CVE-2008-1373 CVE-2008-1374

CUPS: several vulnerabilities

Synthesis of the vulnerability

Several vulnerabilities of CUPS can be used by an attacker to create a denial of service or to execute code.
Severity: 3/4.
Number of vulnerabilities in this bulletin: 3.
Creation date: 02/04/2008.
Identifiers: BID-28307, BID-28544, CERTA-2008-AVI-156, CERTA-2008-AVI-183, CVE-2008-0047, CVE-2008-1373, CVE-2008-1374, FEDORA-2008-2131, FEDORA-2008-2897, MDVSA-2008:081, RHSA-2008:0192-01, RHSA-2008:0206-01, SSA:2008-094-01, SUSE-SA:2008:020, TLSA-2008-19, VIGILANCE-VUL-7719.
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Description of the vulnerability

CUPS (Common UNIX Printing System) provides printers management under Unix. It listens on the 631/udp port. It has several vulnerabilities.

An attacker can send a malicious query to the port 631 in order to create a buffer overflow in cgiCompileSearch (VIGILANCE-VUL-7679). [severity:3/4; BID-28307, CERTA-2008-AVI-156, CERTA-2008-AVI-183, CVE-2008-0047]

An attacker can create a malicious GIF image in order to create an overflow in imagetops and imagetoraster (VIGILANCE-VUL-7562). [severity:3/4; BID-28544, CVE-2008-1373]

On 64 bits platforms, the VIGILANCE-VUL-4466 vulnerability (overflow of pdftops) was not corrected. [severity:2/4; CVE-2008-1374]

These vulnerabilities can be used by an attacker to create a denial of service or to execute code.
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computer weakness announce CVE-2008-1142 CVE-2008-1692

eterm, rxvt: launching without display

Synthesis of the vulnerability

When eterm or rxvt is executed without a display, it automatically starts on the display ":0", which can be the display of another user.
Severity: 1/4.
Number of vulnerabilities in this bulletin: 2.
Creation date: 01/04/2008.
Identifiers: BID-28512, CVE-2008-1142, CVE-2008-1692, MDVSA-2008:161, MDVSA-2008:221, MDVSA-2008:222, SUSE-SR:2008:017, VIGILANCE-VUL-7718.
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Description of the vulnerability

The "-display" parameter and the "DISPLAY" environment variable indicate the display where to open windows of X11 applications.

When the display is not set, most programs print an error message. The eterm and xrvt terminals automatically use the ":0" default display instead of printing an error.

However, the ":0" display can belong to another user. This user thus sees the window, if connections are allowed to his display.

A local attacker can thus for example access to a shell window of a user.
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computer weakness CVE-2008-1637 CVE-2008-3217

PowerDNS: predictability of query ids

Synthesis of the vulnerability

An attacker can predict query ids in order for example to poison the DNS server cache.
Severity: 2/4.
Number of vulnerabilities in this bulletin: 2.
Creation date: 01/04/2008.
Identifiers: BID-28517, CVE-2008-1637, CVE-2008-3217, DSA-1544-2, FEDORA-2008-3010, FEDORA-2008-3036, FEDORA-2008-6893, powerdns-advisory-2008-01, SUSE-SR:2008:012, VIGILANCE-VUL-7717.
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Description of the vulnerability

The DNS protocol defines a 16 bit identifier to associate answer to its query. When attacker predicts this identifier and the UDP port number, he can send fake answers and thus poison the cache of the server.

The PowerDNS Recursor DNS server uses the rand() function provided by the glibc or by Windows. The 32 random bits obtained are used by the identifier and the port number.

However, this implementation is weak. If attacker captures 50 consecutive queries, he can guess the id and the port.

An attacker who captured DNS packets can therefore poison the cache of the DNS server.
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cybersecurity alert CVE-2008-1567

phpMyAdmin: obtaining the password

Synthesis of the vulnerability

A local attacker can read the session file in order to obtain sensitive data such as the phpMyAdmin password.
Severity: 2/4.
Creation date: 01/04/2008.
Identifiers: 1909711, BID-28560, CERTA-2002-AVI-203, CERTA-2008-AVI-168, CVE-2008-1567, DSA-1557-1, FEDORA-2008-2825, FEDORA-2008-2874, MDVSA-2008:131, PMASA-2008-2, SUSE-SR:2008:026, SUSE-SR:2009:003, VIGILANCE-VUL-7716.
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Description of the vulnerability

The phpMyAdmin program is used to administer a MySQL database.

PHP sessions are stored by default under /tmp (session.save_path) and are readable by all local users.

However, phpMyAdmin stores sensitive information in its sessions: username, password and Blowfish secret.

A local attacker can therefore read these files and connect to phpMyAdmin.
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cybersecurity note CVE-2008-1625

avast: memory corruption of aavmker4.sys

Synthesis of the vulnerability

A local attacker can corrupt the memory of aavmker4.sys in order to create a denial of service or to execute code.
Severity: 2/4.
Creation date: 31/03/2008.
Identifiers: BID-28502, CVE-2008-1625, TKADV2008-002, VIGILANCE-VUL-7715.
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Description of the vulnerability

The aavmker4.sys driver is installed by avast.

A local attacker can use the 0xb2d60030 IOCTL of aavmker4.sys driver in order to corrupt the memory with SYSTEM privileges.

He can thus create a denial of service or obtain administrator privileges.
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weakness bulletin CVE-2008-1657

OpenSSH: execution of rc command

Synthesis of the vulnerability

When the ~/.ssh/rc file exists, the ForceCommand directive is not honoured.
Severity: 1/4.
Creation date: 31/03/2008.
Identifiers: BID-28531, CVE-2008-1657, MDVSA-2008:098, NetBSD-SA2008-005, SUSE-SR:2008:009, VIGILANCE-VUL-7714.
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Description of the vulnerability

The ForceCommand directive, added in OpenSSH 4.4, indicates the name of the command to execute, whatever the command sent by the client.

The ~/.ssh/rc file contains commands to execute when user logs in.

When ForceCommand is enabled, commands listed in ~/.ssh/rc are still executed.

If attacker can edit his ~/.ssh/rc file (via FTP for example), he can then connect via ssh and bypass the restriction imposed by ForceCommand.
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threat announce CVE-2008-1561 CVE-2008-1562 CVE-2008-1563

Wireshark: denials of service

Synthesis of the vulnerability

Several vulnerabilities of Wireshark can be used by a remote attacker to create a denial of service.
Severity: 1/4.
Number of vulnerabilities in this bulletin: 4.
Creation date: 28/03/2008.
Identifiers: BID-28485, CVE-2008-1561, CVE-2008-1562, CVE-2008-1563, FEDORA-2008-2941, FEDORA-2008-3040, MDVSA-2008:091, RHSA-2008:0890-01, SUSE-SR:2008:08, VIGILANCE-VUL-7713, wnpa-sec-2008-02.
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Description of the vulnerability

The Wireshark/Ethereal program captures packets, in order to help administrator solving network problems. Protocols are decoded by dissectors. They have several vulnerabilities.

An attacker can stop the X.509sat dissector. [severity:1/4; CVE-2008-1561]

An attacker can stop the Roofnet dissector. [severity:1/4; CVE-2008-1561]

An attacker can stop the LDAP dissector. [severity:1/4; CVE-2008-1562]

An attacker can stop the SCCP dissector, when "decode as" is used. [severity:1/4; CVE-2008-1563]
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computer vulnerability CVE-2002-2008 CVE-2005-4703 CVE-2006-7197

Apache Tomcat: information disclosure

Synthesis of the vulnerability

Two vulnerabilities of Apache Tomcat can be used by an attacker to obtain information.
Severity: 1/4.
Number of vulnerabilities in this bulletin: 2.
Creation date: 28/03/2008.
Identifiers: BID-28477, BID-28484, BID-5054, CVE-2002-2008, CVE-2005-4703, CVE-2006-7197, RHSA-2008:0261-01, RHSA-2008:0524-01, VIGILANCE-VUL-7711.
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Description of the vulnerability

Two vulnerabilities of Apache Tomcat can be used by an attacker to obtain information.

An attacker can obtain information via mod_jk (impacted versions: 4.0.1-4.0.6, 4.1.0-4.1.32, 5.0.0-5.0.30, 5.5.0-5.5.16). [severity:1/4; BID-28477, CVE-2006-7197]

Under Windows, an attacker can obtain the installation path name (impacted versions: 4.0.0-4.0.6). [severity:1/4; BID-28484, BID-5054, CVE-2002-2008, CVE-2005-4703]
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security note CVE-2007-6354 CVE-2007-6355 CVE-2007-6356

exiftags: several vulnerabilities

Synthesis of the vulnerability

An attacker can create malicious JPEG images in order to create a denial of service or code execution when they are handled by exiftags.
Severity: 3/4.
Number of vulnerabilities in this bulletin: 3.
Creation date: 28/03/2008.
Identifiers: BID-26892, CVE-2007-6354, CVE-2007-6355, CVE-2007-6356, DSA-1533-1, VIGILANCE-VUL-7710.
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Description of the vulnerability

A JPEG image can contain EXIF (EXchangeable Image File) data, created for example with numeric cameras. The exiftags program displays EXIF data. It contains several vulnerabilities.

A malicious JPEG image can create an overflow leading to code execution. [severity:3/4; CVE-2007-6354]

A malicious JPEG image can create an overflow leading to code execution. [severity:3/4; CVE-2007-6355]

A malicious JPEG image can contain recursive IFD references, which creates an infinite loop. [severity:1/4; CVE-2007-6356]
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