Vulnerability Name:

CVE-2005-1935 (CCN-20870)

Assigned:2005-06-04
Published:2005-06-04
Updated:2017-07-11
Summary:Heap-based buffer overflow in the BERDecBitString function in Microsoft ASN.1 library (MSASN1.DLL) allows remote attackers to execute arbitrary code via nested constructed bit strings, which leads to a realloc of a non-null pointer and causes the function to overwrite previously freed memory, as demonstrated using a SPNEGO token with a constructed bit string during HTTP authentication, and a different vulnerability than CVE-2003-0818.
Note: the researcher has claimed that MS:MS04-007 fixes this issue.
CVSS v3 Severity:7.3 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): Low
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
7.5 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
Vulnerability Type:CWE-Other
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2005-1935

Source: CCN
Type: Microsoft Security Bulletin MS04-007
ASN.1 Vulnerability Could Allow Code Execution (828028)

Source: CCN
Type: Phreedom.org Web site
kill-bill

Source: MISC
Type: Exploit
http://www.phreedom.org/solar/exploits/msasn1-bitstring/

Source: XF
Type: UNKNOWN
asn1-constructed-heap-overflow(20870)

Source: XF
Type: UNKNOWN
asn1-constructed-heap-overflow(20870)

Vulnerable Configuration:Configuration 1:
  • cpe:/o:microsoft:windows_2000:*:sp2:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_2000:*:sp3:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_2000:*:sp4:*:fr:*:*:*:*
  • OR cpe:/o:microsoft:windows_2003_server:64-bit:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_2003_server:r2:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_nt:4.0:sp6:*:*:terminal_server:*:x86:*
  • OR cpe:/o:microsoft:windows_nt:4.0:sp6a:*:*:server:*:x86:*
  • OR cpe:/o:microsoft:windows_nt:4.0:sp6a:*:*:workstation:*:x86:*
  • OR cpe:/o:microsoft:windows_xp:*:*:64-bit:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_xp:*:gold:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_xp:*:sp1:64-bit:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_xp:*:sp1:tablet_pc:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/o:microsoft:windows_nt:4.0:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_2000:*:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows:xp:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_2003_server:*:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    microsoft windows 2000 * sp2
    microsoft windows 2000 * sp3
    microsoft windows 2000 * sp4
    microsoft windows 2003 server 64-bit
    microsoft windows 2003 server r2
    microsoft windows nt 4.0 sp6
    microsoft windows nt 4.0 sp6a
    microsoft windows nt 4.0 sp6a
    microsoft windows xp *
    microsoft windows xp * gold
    microsoft windows xp * sp1
    microsoft windows xp * sp1
    microsoft windows nt 4.0
    microsoft windows 2000 *
    microsoft windows xp
    microsoft windows 2003 server *